diff --git a/src/main/gtk-3.0/gtk-dark-blue.css b/src/main/gtk-3.0/gtk-dark-blue.css
index ad50bad4..1a220a20 100644
--- a/src/main/gtk-3.0/gtk-dark-blue.css
+++ b/src/main/gtk-3.0/gtk-dark-blue.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #2E7CF7;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(120, 170, 250, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-green.css b/src/main/gtk-3.0/gtk-dark-green.css
index 0ba83279..48cc36e5 100644
--- a/src/main/gtk-3.0/gtk-dark-green.css
+++ b/src/main/gtk-3.0/gtk-dark-green.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #79B757;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(164, 206, 141, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-grey.css b/src/main/gtk-3.0/gtk-dark-grey.css
index 7611f99c..49993695 100644
--- a/src/main/gtk-3.0/gtk-dark-grey.css
+++ b/src/main/gtk-3.0/gtk-dark-grey.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #8C8C8C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(178, 178, 178, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-orange.css b/src/main/gtk-3.0/gtk-dark-orange.css
index 3e2583df..4b695099 100644
--- a/src/main/gtk-3.0/gtk-dark-orange.css
+++ b/src/main/gtk-3.0/gtk-dark-orange.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E9873A;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(241, 177, 127, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-pink.css b/src/main/gtk-3.0/gtk-dark-pink.css
index 1ce38610..104d0cdc 100644
--- a/src/main/gtk-3.0/gtk-dark-pink.css
+++ b/src/main/gtk-3.0/gtk-dark-pink.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E55E9C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(240, 160, 197, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-purple.css b/src/main/gtk-3.0/gtk-dark-purple.css
index 2db37093..96d3f1cd 100644
--- a/src/main/gtk-3.0/gtk-dark-purple.css
+++ b/src/main/gtk-3.0/gtk-dark-purple.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #9A57A3;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(185, 135, 191, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-red.css b/src/main/gtk-3.0/gtk-dark-red.css
index f43545fe..6531cce2 100644
--- a/src/main/gtk-3.0/gtk-dark-red.css
+++ b/src/main/gtk-3.0/gtk-dark-red.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #ED5F5D;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(245, 163, 162, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-blue.css b/src/main/gtk-3.0/gtk-dark-solid-blue.css
index ebb1bab0..cdf3b34f 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-blue.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-blue.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #2E7CF7;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(120, 170, 250, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-green.css b/src/main/gtk-3.0/gtk-dark-solid-green.css
index 3bff9906..d660f3e3 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-green.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-green.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #79B757;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(164, 206, 141, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-grey.css b/src/main/gtk-3.0/gtk-dark-solid-grey.css
index d632c6ad..01ff6032 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-grey.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-grey.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #8C8C8C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(178, 178, 178, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-orange.css b/src/main/gtk-3.0/gtk-dark-solid-orange.css
index 144b7bc0..f046e0f8 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-orange.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-orange.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E9873A;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(241, 177, 127, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-pink.css b/src/main/gtk-3.0/gtk-dark-solid-pink.css
index a98debd4..2abfd1da 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-pink.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-pink.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E55E9C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(240, 160, 197, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-purple.css b/src/main/gtk-3.0/gtk-dark-solid-purple.css
index 3a16f15c..3f981d9a 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-purple.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-purple.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #9A57A3;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(185, 135, 191, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-red.css b/src/main/gtk-3.0/gtk-dark-solid-red.css
index c2111e84..f875c00d 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-red.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-red.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #ED5F5D;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(245, 163, 162, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid-yellow.css b/src/main/gtk-3.0/gtk-dark-solid-yellow.css
index 5a4ff54e..de62bf44 100644
--- a/src/main/gtk-3.0/gtk-dark-solid-yellow.css
+++ b/src/main/gtk-3.0/gtk-dark-solid-yellow.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #F3BA4B;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(248, 213, 147, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-solid.css b/src/main/gtk-3.0/gtk-dark-solid.css
index 9325d065..df326dfc 100644
--- a/src/main/gtk-3.0/gtk-dark-solid.css
+++ b/src/main/gtk-3.0/gtk-dark-solid.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5094,15 +5098,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5365,42 +5373,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #0860F2;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5409,47 +5413,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5458,25 +5462,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6061,11 +6076,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6091,6 +6101,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6155,6 +6178,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6164,6 +6221,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6177,6 +6238,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6209,6 +6278,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(77, 142, 249, 0.75);
 }
@@ -6242,16 +6325,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6262,6 +6358,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6273,6 +6373,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6291,6 +6395,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6627,6 +6735,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6655,6 +6767,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6669,6 +6785,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6687,6 +6811,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6837,6 +6969,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7122,6 +7261,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #333333;
@@ -7354,6 +7497,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7663,6 +7834,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7671,6 +7846,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8096,6 +8279,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark-yellow.css b/src/main/gtk-3.0/gtk-dark-yellow.css
index adef04f7..dcf05738 100644
--- a/src/main/gtk-3.0/gtk-dark-yellow.css
+++ b/src/main/gtk-3.0/gtk-dark-yellow.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #F3BA4B;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(248, 213, 147, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-dark.css b/src/main/gtk-3.0/gtk-dark.css
index ef388120..905daac4 100644
--- a/src/main/gtk-3.0/gtk-dark.css
+++ b/src/main/gtk-3.0/gtk-dark.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5090,15 +5094,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5361,42 +5369,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #242424;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #313131;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #0860F2;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #dedede;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #818181;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5405,47 +5409,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #a2a2a2;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #dedede;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #1a1a1a;
   color: #dedede;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(255, 255, 255, 0.12);
   background-color: #333333;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #383838;
   padding: 6px;
   border-color: rgba(255, 255, 255, 0.12);
@@ -5454,25 +5458,36 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(222, 222, 222, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6057,11 +6072,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #242424;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #242424;
@@ -6087,6 +6097,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #242424;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6151,6 +6174,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #242424;
   border-radius: 0 0 12px 12px;
@@ -6160,6 +6217,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6173,6 +6234,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #FDFDFD;
@@ -6205,6 +6274,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: inset 0 0 0 1px rgba(77, 142, 249, 0.75);
 }
@@ -6238,16 +6321,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6258,6 +6354,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6269,6 +6369,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #333333;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
@@ -6287,6 +6391,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#333333);
 }
@@ -6623,6 +6731,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6651,6 +6763,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6665,6 +6781,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #242424;
@@ -6683,6 +6807,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #0e0e0e;
@@ -6833,6 +6965,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7118,6 +7257,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(51, 51, 51, 0.95);
@@ -7350,6 +7493,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7659,6 +7830,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7667,6 +7842,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8092,6 +8275,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #242424;
diff --git a/src/main/gtk-3.0/gtk-light-blue.css b/src/main/gtk-3.0/gtk-light-blue.css
index 48321af4..497ddd90 100644
--- a/src/main/gtk-3.0/gtk-light-blue.css
+++ b/src/main/gtk-3.0/gtk-light-blue.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #2E7CF7;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(120, 170, 250, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-green.css b/src/main/gtk-3.0/gtk-light-green.css
index f7ca4e21..4fb088e4 100644
--- a/src/main/gtk-3.0/gtk-light-green.css
+++ b/src/main/gtk-3.0/gtk-light-green.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #79B757;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(164, 206, 141, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-grey.css b/src/main/gtk-3.0/gtk-light-grey.css
index ed26ff28..5e596548 100644
--- a/src/main/gtk-3.0/gtk-light-grey.css
+++ b/src/main/gtk-3.0/gtk-light-grey.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #8C8C8C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(178, 178, 178, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-orange.css b/src/main/gtk-3.0/gtk-light-orange.css
index cad83352..3d6d833d 100644
--- a/src/main/gtk-3.0/gtk-light-orange.css
+++ b/src/main/gtk-3.0/gtk-light-orange.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E9873A;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(241, 177, 127, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-pink.css b/src/main/gtk-3.0/gtk-light-pink.css
index 7794d7c4..bd7a39d3 100644
--- a/src/main/gtk-3.0/gtk-light-pink.css
+++ b/src/main/gtk-3.0/gtk-light-pink.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E55E9C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(240, 160, 197, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-purple.css b/src/main/gtk-3.0/gtk-light-purple.css
index 36449698..b819d2da 100644
--- a/src/main/gtk-3.0/gtk-light-purple.css
+++ b/src/main/gtk-3.0/gtk-light-purple.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #9A57A3;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(185, 135, 191, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-red.css b/src/main/gtk-3.0/gtk-light-red.css
index 5674a0d9..5656fe81 100644
--- a/src/main/gtk-3.0/gtk-light-red.css
+++ b/src/main/gtk-3.0/gtk-light-red.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #ED5F5D;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(245, 163, 162, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-blue.css b/src/main/gtk-3.0/gtk-light-solid-blue.css
index bc061505..243c5993 100644
--- a/src/main/gtk-3.0/gtk-light-solid-blue.css
+++ b/src/main/gtk-3.0/gtk-light-solid-blue.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #2E7CF7;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(120, 170, 250, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-green.css b/src/main/gtk-3.0/gtk-light-solid-green.css
index 17ef0b05..59ee74b6 100644
--- a/src/main/gtk-3.0/gtk-light-solid-green.css
+++ b/src/main/gtk-3.0/gtk-light-solid-green.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #79B757;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(164, 206, 141, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-grey.css b/src/main/gtk-3.0/gtk-light-solid-grey.css
index a168cb59..120da3dc 100644
--- a/src/main/gtk-3.0/gtk-light-solid-grey.css
+++ b/src/main/gtk-3.0/gtk-light-solid-grey.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #8C8C8C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(178, 178, 178, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-orange.css b/src/main/gtk-3.0/gtk-light-solid-orange.css
index 74288533..16de2b90 100644
--- a/src/main/gtk-3.0/gtk-light-solid-orange.css
+++ b/src/main/gtk-3.0/gtk-light-solid-orange.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E9873A;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(241, 177, 127, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-pink.css b/src/main/gtk-3.0/gtk-light-solid-pink.css
index 4bbe6584..a589205f 100644
--- a/src/main/gtk-3.0/gtk-light-solid-pink.css
+++ b/src/main/gtk-3.0/gtk-light-solid-pink.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #E55E9C;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(240, 160, 197, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-purple.css b/src/main/gtk-3.0/gtk-light-solid-purple.css
index e333a716..7489ac5e 100644
--- a/src/main/gtk-3.0/gtk-light-solid-purple.css
+++ b/src/main/gtk-3.0/gtk-light-solid-purple.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #9A57A3;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(185, 135, 191, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-red.css b/src/main/gtk-3.0/gtk-light-solid-red.css
index 31993345..5c5dc738 100644
--- a/src/main/gtk-3.0/gtk-light-solid-red.css
+++ b/src/main/gtk-3.0/gtk-light-solid-red.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #ED5F5D;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(245, 163, 162, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid-yellow.css b/src/main/gtk-3.0/gtk-light-solid-yellow.css
index 47aa4f34..188f0879 100644
--- a/src/main/gtk-3.0/gtk-light-solid-yellow.css
+++ b/src/main/gtk-3.0/gtk-light-solid-yellow.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #F3BA4B;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(248, 213, 147, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-solid.css b/src/main/gtk-3.0/gtk-light-solid.css
index 23cba89c..6d35e353 100644
--- a/src/main/gtk-3.0/gtk-light-solid.css
+++ b/src/main/gtk-3.0/gtk-light-solid.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5116,15 +5120,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5387,42 +5395,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #0860F2;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5431,47 +5435,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5480,26 +5484,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6084,11 +6099,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6114,6 +6124,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6178,6 +6201,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6187,6 +6244,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6200,6 +6261,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6232,6 +6301,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(77, 142, 249, 0.75);
 }
@@ -6265,16 +6348,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6285,6 +6381,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6296,6 +6396,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6314,6 +6418,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6643,6 +6751,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6671,6 +6783,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6685,6 +6801,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6703,6 +6827,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6853,6 +6985,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid #161616;
@@ -7138,6 +7277,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: #f0f0f0;
@@ -7370,6 +7513,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7690,6 +7861,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7698,6 +7873,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8124,6 +8307,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light-yellow.css b/src/main/gtk-3.0/gtk-light-yellow.css
index e07567e7..d09b9223 100644
--- a/src/main/gtk-3.0/gtk-light-yellow.css
+++ b/src/main/gtk-3.0/gtk-light-yellow.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #F3BA4B;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(248, 213, 147, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/main/gtk-3.0/gtk-light.css b/src/main/gtk-3.0/gtk-light.css
index 84a0d308..6e12d174 100644
--- a/src/main/gtk-3.0/gtk-light.css
+++ b/src/main/gtk-3.0/gtk-light.css
@@ -26,6 +26,10 @@
   border-radius: 0 0 12px 12px;
 }
 
+.background.csd.maximized, .background.csd.tiled, .background.csd.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 .background.solid-csd {
   border-radius: 0;
 }
@@ -5112,15 +5116,19 @@ window.background.csd > box.vertical > box.horizontal > stack > widget > noteboo
   -gtk-icon-shadow: none;
 }
 
-.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack {
+.nautilus-window.maximized.background.csd, .nautilus-window.tiled.background.csd, .nautilus-window.fullscreen.background.csd {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized headerbar {
+.nautilus-window.maximized notebook, .nautilus-window.maximized notebook > stack, .nautilus-window.tiled notebook, .nautilus-window.tiled notebook > stack, .nautilus-window.fullscreen notebook, .nautilus-window.fullscreen notebook > stack {
   border-radius: 0 0 0 0;
 }
 
-.nautilus-window.maximized placessidebar {
+.nautilus-window.maximized headerbar, .nautilus-window.tiled headerbar, .nautilus-window.fullscreen headerbar {
+  border-radius: 0 0 0 0;
+}
+
+.nautilus-window.maximized placessidebar, .nautilus-window.tiled placessidebar, .nautilus-window.fullscreen placessidebar {
   border-bottom-left-radius: 0;
 }
 
@@ -5383,42 +5391,38 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   background: none;
 }
 
-.tiled window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .maximized window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, .fullscreen window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
-  border-bottom-left-radius: 0;
-}
-
-.open-document-selector-treeview.view {
+window.org-gnome-gedit .open-document-selector-treeview.view {
   padding: 3px 6px 3px 6px;
   border-color: #ffffff;
 }
 
-.open-document-selector-treeview.view:hover {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover {
   background-color: #f0f0f0;
 }
 
-.open-document-selector-treeview.view:hover:selected {
+window.org-gnome-gedit .open-document-selector-treeview.view:hover:selected {
   color: white;
   background-color: #0860F2;
 }
 
-.open-document-selector-name-label {
+window.org-gnome-gedit .open-document-selector-name-label {
   color: #242424;
 }
 
-.open-document-selector-path-label {
+window.org-gnome-gedit .open-document-selector-path-label {
   color: #929292;
   font-size: smaller;
 }
 
-.open-document-selector-path-label:selected {
+window.org-gnome-gedit .open-document-selector-path-label:selected {
   color: rgba(255, 255, 255, 0.9);
 }
 
-.gedit-document-panel row.activatable {
+window.org-gnome-gedit .gedit-document-panel row.activatable {
   padding: 6px 0;
 }
 
-.gedit-document-panel row button {
+window.org-gnome-gedit .gedit-document-panel row button {
   min-width: 22px;
   min-height: 22px;
   padding: 0;
@@ -5427,47 +5431,47 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   -gtk-outline-radius: 100px;
 }
 
-.gedit-document-panel row button image {
+window.org-gnome-gedit .gedit-document-panel row button image {
   color: inherit;
 }
 
-.gedit-document-panel row:hover:not(:selected) button {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button {
   color: #6d6d6d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:hover {
   color: #ff4d4d;
 }
 
-.gedit-document-panel row:hover:not(:selected) button:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:not(:selected) button:active {
   color: #242424;
 }
 
-.gedit-document-panel row:hover:selected button:hover {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover {
   color: #ff6666;
 }
 
-.gedit-document-panel row:hover:selected button:hover:active {
+window.org-gnome-gedit .gedit-document-panel row:hover:selected button:hover:active {
   color: white;
 }
 
-.gedit-document-panel-dragged-row {
+window.org-gnome-gedit .gedit-document-panel-dragged-row {
   border: 1px solid rgba(0, 0, 0, 0.12);
   background-color: gainsboro;
   color: #242424;
 }
 
-.gedit-side-panel-paned statusbar {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar {
   border-top: 1px solid rgba(0, 0, 0, 0.12);
   background-color: #f5f5f5;
   border-radius: 0 0 12px 12px;
 }
 
-.gedit-side-panel-paned statusbar frame > border {
+window.org-gnome-gedit .gedit-side-panel-paned statusbar frame > border {
   border: none;
 }
 
-.gedit-search-slider {
+window.org-gnome-gedit .gedit-search-slider {
   background-color: #fafafa;
   padding: 6px;
   border-color: rgba(0, 0, 0, 0.12);
@@ -5476,26 +5480,37 @@ window.org-gnome-gedit > overlay > box.vertical > paned.gedit-side-panel-paned s
   border-style: solid;
 }
 
-.gedit-search-entry-occurrences-tag {
+window.org-gnome-gedit .gedit-search-entry-occurrences-tag {
   color: rgba(36, 36, 36, 0.6);
   border: none;
   margin: 2px;
   padding: 2px;
 }
 
-.gedit-map-frame border {
+window.org-gnome-gedit .gedit-map-frame border {
   border-color: rgba(0, 0, 0, 0.3);
   border-width: 0;
 }
 
-.gedit-map-frame border:dir(ltr) {
+window.org-gnome-gedit .gedit-map-frame border:dir(ltr) {
   border-left-width: 1px;
 }
 
-.gedit-map-frame border:dir(rtl) {
+window.org-gnome-gedit .gedit-map-frame border:dir(rtl) {
   border-right-width: 1px;
 }
 
+window.org-gnome-gedit.tiled > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.maximized > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow, window.org-gnome-gedit.fullscreen > overlay > box.vertical > paned.gedit-side-panel-paned > box.vertical > stack > grid.horizontal > scrolledwindow {
+  border-bottom-left-radius: 0;
+}
+
+window.org-gnome-gedit.tiled.background.csd,
+window.org-gnome-gedit.tiled .gedit-side-panel-paned statusbar, window.org-gnome-gedit.maximized.background.csd,
+window.org-gnome-gedit.maximized .gedit-side-panel-paned statusbar, window.org-gnome-gedit.fullscreen.background.csd,
+window.org-gnome-gedit.fullscreen .gedit-side-panel-paned statusbar {
+  border-radius: 0 0 0 0;
+}
+
 .pluma-window statusbar frame > border {
   border: none;
 }
@@ -6080,11 +6095,6 @@ hdyleaflet frame.view list > separator, leaflet frame.view list > separator, box
   border: none;
 }
 
-window.background.csd > hdyleaflet > box.vertical > stack.main-container {
-  background-color: #ffffff;
-  border-bottom-right-radius: 12px;
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: #ffffff;
@@ -6110,6 +6120,19 @@ row#AutostartTitle.tweak {
   background: none;
 }
 
+window.background.csd > hdyleaflet > box.vertical > stack.main-container {
+  background-color: #ffffff;
+  border-bottom-right-radius: 12px;
+}
+
+window.background.csd.maximized > hdyleaflet > box.vertical > stack.main-container, window.background.csd.tiled > hdyleaflet > box.vertical > stack.main-container, window.background.csd.fullscreen > hdyleaflet > box.vertical > stack.main-container {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized .tweak-categories, window.background.csd.tiled .tweak-categories, window.background.csd.fullscreen .tweak-categories {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > stack {
   border-radius: 0 0 12px 12px;
 }
@@ -6174,6 +6197,40 @@ window.background.csd > box.horizontal > box.vertical > scrolledwindow.view > vi
   background-color: transparent;
 }
 
+window.background.csd.maximized > stack, window.background.csd.tiled > stack, window.background.csd.fullscreen > stack {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background,
+window.background.csd.maximized > hdyleaflet > stack.background,
+window.background.csd.maximized > box.horizontal > stack.background, window.background.csd.tiled > leaflet > stack.background,
+window.background.csd.tiled > hdyleaflet > stack.background,
+window.background.csd.tiled > box.horizontal > stack.background, window.background.csd.fullscreen > leaflet > stack.background,
+window.background.csd.fullscreen > hdyleaflet > stack.background,
+window.background.csd.fullscreen > box.horizontal > stack.background {
+  border-bottom-right-radius: 0;
+}
+
+window.background.csd.maximized > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.maximized > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.tiled > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.tiled > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame, window.background.csd.fullscreen > leaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > hdyleaflet > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > box.horizontal > stack.background > widget > box.vertical > box.vertical > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 1px;
+}
+
+window.background.csd.maximized > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.maximized > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.tiled > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.tiled > box.horizontal > box.vertical > scrolledwindow.view, window.background.csd.fullscreen > leaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > hdyleaflet > box.vertical > scrolledwindow.view,
+window.background.csd.fullscreen > box.horizontal > box.vertical > scrolledwindow.view {
+  border-bottom-left-radius: 1px;
+}
+
 window#gnome-system-monitor.background.csd > box.vertical > stack {
   background-color: #ffffff;
   border-radius: 0 0 12px 12px;
@@ -6183,6 +6240,10 @@ window#gnome-system-monitor.background.csd > box.vertical > stack > box.vertical
   background: none;
 }
 
+window#gnome-system-monitor.background.csd.maximized > box.vertical > stack, window#gnome-system-monitor.background.csd.tiled > box.vertical > stack, window#gnome-system-monitor.background.csd.fullscreen > box.vertical > stack {
+  border-radius: 0 0 0 0;
+}
+
 stack > grid.vertical > scrolledwindow {
   border: none;
   border-radius: 0 0 12px 12px;
@@ -6196,6 +6257,14 @@ stack > grid.vertical scrolledwindow.frame.emptyGrid {
   border: none;
 }
 
+window.background.csd.maximized stack > grid.vertical > scrolledwindow, window.background.csd.tiled stack > grid.vertical > scrolledwindow, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+window.background.csd.maximized stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.tiled stack > grid.vertical > scrolledwindow > viewport.frame list, window.background.csd.fullscreen stack > grid.vertical > scrolledwindow > viewport.frame list {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > headerbar.titlebar.selection-mode > hdyleaflet > headerbar,
 window.background.csd > headerbar.titlebar.selection-mode > leaflet > headerbar {
   color: #575757;
@@ -6228,6 +6297,20 @@ window.background.csd > overlay > leaflet > overlay > scrolledwindow > viewport.
   padding: 2px;
 }
 
+window.background.csd.maximized > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.maximized > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.tiled > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.tiled > overlay > leaflet > stack > frame > grid.vertical, window.background.csd.fullscreen > overlay > hdyleaflet > stack > frame > grid.vertical,
+window.background.csd.fullscreen > overlay > leaflet > stack > frame > grid.vertical {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.maximized > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.tiled > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.tiled > overlay > leaflet > overlay > scrolledwindow > viewport.frame, window.background.csd.fullscreen > overlay > hdyleaflet > overlay > scrolledwindow > viewport.frame,
+window.background.csd.fullscreen > overlay > leaflet > overlay > scrolledwindow > viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
 entry.contacts-postal-entry:focus {
   box-shadow: 0 1px 1px 0 transparent, inset 0 0 0 1px rgba(77, 142, 249, 0.75);
 }
@@ -6261,16 +6344,29 @@ window.background.csd > box.vertical > overlay > stack.background {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack.background, window.background.csd.tiled > box.vertical > overlay > stack.background, window.background.csd.fullscreen > box.vertical > overlay > stack.background {
+  border-radius: 0 0 0 0;
+}
+
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: 12px;
 }
 
+.maximized #weather-page, .tiled #weather-page, .fullscreen #weather-page, .maximized #weekly-forecast-frame, .tiled #weekly-forecast-frame, .fullscreen #weekly-forecast-frame {
+  border-bottom-right-radius: 0;
+}
+
 #weather-page-content-view {
   border-bottom-right-radius: 12px;
   border-bottom-left-radius: 12px;
 }
 
+.maximized #weather-page-content-view, .tiled #weather-page-content-view, .fullscreen #weather-page-content-view {
+  border-bottom-left-radius: 0;
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd.unified {
   border-top-left-radius: 12px;
   border-top-right-radius: 12px;
@@ -6281,6 +6377,10 @@ window.background.csd.unified > deck > deck > deck > box.vertical > headerbar.ti
   border-radius: 0;
 }
 
+window.background.csd.unified.maximized, window.background.csd.unified.tiled, window.background.csd.unified.fullscreen {
+  border-radius: 0 0 0 0;
+}
+
 hdyviewswitcherbar > actionbar,
 viewswitcherbar > actionbar {
   background: none;
@@ -6292,6 +6392,10 @@ viewswitcherbar > actionbar {
   border-bottom-left-radius: 12px;
 }
 
+.polari-room-list.maximized .sidebar, .polari-room-list.tiled .sidebar, .polari-room-list.fullscreen .sidebar {
+  border-bottom-left-radius: 0;
+}
+
 stack.view.polari-entry-area {
   background-color: #f5f5f5;
   border-top: 1px solid rgba(0, 0, 0, 0.12);
@@ -6310,6 +6414,10 @@ stack.view.polari-entry-area button.popup.flat.toggle.polari-nick-button:active,
   background-image: none;
 }
 
+.maximized stack.view.polari-entry-area, .tiled stack.view.polari-entry-area, .fullscreen stack.view.polari-entry-area {
+  border-bottom-right-radius: 0;
+}
+
 stack.view.polari-entry-area:disabled {
   background-image: image(#f5f5f5);
 }
@@ -6639,6 +6747,10 @@ flowboxchild.bookmark-tag-widget-selected {
   border-bottom-left-radius: 12px;
 }
 
+.background.csd.main-window.maximized .sidebar.rooms-sidebar, .background.csd.main-window.tiled .sidebar.rooms-sidebar, .background.csd.main-window.fullscreen .sidebar.rooms-sidebar {
+  border-bottom-left-radius: 0;
+}
+
 .documents-scrolledwin {
   background-color: transparent;
 }
@@ -6667,6 +6779,10 @@ window.background.csd > box.vertical > overlay > stack > box.vertical > actionba
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.tiled > box.vertical > overlay > stack > box.vertical > actionbar, window.background.csd.fullscreen > box.vertical > overlay > stack > box.vertical > actionbar {
+  border-radius: 0 0 0 0;
+}
+
 window.background.csd > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
   background-color: transparent;
   border-radius: 12px;
@@ -6681,6 +6797,14 @@ window.background.csd evview.view.content-view {
   border-radius: 0 0 12px 12px;
 }
 
+window.background.csd.maximized > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.tiled > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected), window.background.csd.fullscreen > box.vertical > scrolledwindow > iconview.view.content-view:not(:hover):not(:selected) {
+  border-radius: 0;
+}
+
+window.background.csd.maximized evview.view.content-view, window.background.csd.tiled evview.view.content-view, window.background.csd.fullscreen evview.view.content-view {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > grid.horizontal > paned.horizontal > scrolledwindow {
   border-radius: 0 0 12px 12px;
   background-color: #ffffff;
@@ -6699,6 +6823,14 @@ window.background.csd evview.view.content-view {
   background-color: transparent;
 }
 
+.background.csd.maximized > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
+.background.csd.maximized > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.tiled > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow, .background.csd.fullscreen > grid.horizontal > paned.horizontal > box.vertical > scrolledwindow {
+  border-radius: 0 0 0 0;
+}
+
 .background.csd > box.vertical > box.vertical > box.vertical > paned.horizontal > separator {
   background-image: none;
   background-color: #e0e0e0;
@@ -6849,6 +6981,13 @@ window.background.csd > stack > box > stack > scrolledwindow > viewport > list {
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > box > box > list,
+window.background.csd.maximized > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.tiled > stack > box > box > list,
+window.background.csd.tiled > stack > box > stack > scrolledwindow > viewport > list, window.background.csd.fullscreen > stack > box > box > list,
+window.background.csd.fullscreen > stack > box > stack > scrolledwindow > viewport > list {
+  border-bottom-left-radius: 0;
+}
+
 MsdOsdWindow.background.osd {
   border-radius: 2px;
   border: 1px solid rgba(22, 22, 22, 0.9);
@@ -7134,6 +7273,10 @@ window.background.csd.thunar > grid.horizontal > paned.horizontal > scrolledwind
   background-color: transparent;
 }
 
+window.background.csd.thunar.maximized > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.tiled > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane, window.background.csd.thunar.fullscreen > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+  border-bottom-left-radius: 0;
+}
+
 window.thunar > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
   border-top: none;
   background-color: rgba(240, 240, 240, 0.94);
@@ -7366,6 +7509,34 @@ window#GearyMainWindow.background.csd paned.geary-sidebar-pane-separator frame.g
   background: none;
 }
 
+.geary-main-window.background.csd.maximized > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.tiled > overlay > box.vertical > paned > .sidebar, .geary-main-window.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.maximized > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.tiled > overlay > box.vertical > paned > .sidebar,
+window#GearyMainWindow.background.csd.fullscreen > overlay > box.vertical > paned > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer, .geary-main-window.background.csd.tiled stack#conversation_viewer, .geary-main-window.background.csd.fullscreen stack#conversation_viewer,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer {
+  border-bottom-right-radius: 1px;
+}
+
+.geary-main-window.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame, .geary-main-window.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.maximized stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.tiled stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame,
+window#GearyMainWindow.background.csd.fullscreen stack#conversation_viewer scrolledwindow.geary-conversation-scroller viewport.frame {
+  border-bottom-right-radius: 0;
+}
+
+.geary-main-window.background.csd.maximized paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.tiled paned.geary-sidebar-pane-separator statusbar, .geary-main-window.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.maximized paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.tiled paned.geary-sidebar-pane-separator statusbar,
+window#GearyMainWindow.background.csd.fullscreen paned.geary-sidebar-pane-separator statusbar {
+  border-bottom-left-radius: 0;
+}
+
 window.background:not(.csd) > widget > separator {
   padding-top: 1px;
   margin-top: 1px;
@@ -7686,6 +7857,10 @@ window.background.csd > box.horizontal > stack > box.vertical > notebook > stack
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.tiled > box.horizontal > stack > box.vertical > notebook > stack, window.background.csd.fullscreen > box.horizontal > stack > box.vertical > notebook > stack {
+  border-bottom-right-radius: 0;
+}
+
 window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
   border-bottom-left-radius: 12px;
 }
@@ -7694,6 +7869,14 @@ window.background.csd > grid.vertical > overlay > grid.vertical > grid.horizonta
   border-bottom-right-radius: 12px;
 }
 
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > .sidebar {
+  border-bottom-left-radius: 0;
+}
+
+window.background.csd.maximized > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.tiled > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack, window.background.csd.fullscreen > grid.vertical > overlay > grid.vertical > grid.horizontal > paned.horizontal > stack {
+  border-bottom-right-radius: 0;
+}
+
 toolbar#SubToolBox {
   min-height: 36px;
 }
@@ -8120,6 +8303,10 @@ window.background.csd > stack > stack > paned.horizontal > scrolledwindow > view
   border-bottom-left-radius: 12px;
 }
 
+window.background.csd.maximized > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.tiled > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list, window.background.csd.fullscreen > stack > stack > paned.horizontal > scrolledwindow > viewport.frame list {
+  border-bottom-left-radius: 0;
+}
+
 .dynamic-notebook > notebook > stack {
   border-bottom-right-radius: 12px;
   background-color: #ffffff;
diff --git a/src/sass/gtk/_applications.scss b/src/sass/gtk/_applications.scss
index 253a990d..87c82581 100644
--- a/src/sass/gtk/_applications.scss
+++ b/src/sass/gtk/_applications.scss
@@ -351,7 +351,8 @@ $nautilus_background_image: linear-gradient(90deg, $dark_sidebar_bg 0%,
   }
 
   // Reset maximized nautilus-window border-radius
-  &.maximized {
+  &.maximized, &.tiled, &.fullscreen {
+    &.background.csd { border-radius: 0 0 $maximized_radius $maximized_radius; }
     notebook { &, > stack { border-radius: 0 0 $maximized_radius $maximized_radius; } }
     headerbar { border-radius: $maximized_radius $maximized_radius 0 0; }
     placessidebar { border-bottom-left-radius: $maximized_radius; }
@@ -680,9 +681,116 @@ window.org-gnome-gedit {
     }
   }
 
-  .tiled &,
-  .maximized &,
-  .fullscreen & {
+  .open-document-selector-treeview.view {
+    padding: 3px 6px 3px 6px;
+    border-color: $base_color; // disable borders, making them transparent doesn't work for some reason
+    &:hover {
+      background-color: mix($fg_color, $base_color, 7%);
+
+      &:selected {
+        color: $selected_fg_color;
+        background-color: $selected_bg_color;
+      }
+    }
+  }
+
+  .open-document-selector-name-label { color: $fg_color; }
+
+  .open-document-selector-path-label {
+    color: mix($fg_color, $base_color, 50%);
+    font-size: smaller;
+
+    &:selected {
+      color: transparentize($selected_fg_color, 0.1);
+    }
+  }
+
+  .gedit-document-panel { // 'documents' pane
+
+    row.activatable { padding: 6px 0; }
+
+    row button { // 'close' button
+      min-width: 22px;
+      min-height: 22px;
+      padding: 0;
+      margin: 0 6px;
+      border-radius: 100px;
+      -gtk-outline-radius: 100px;
+
+      image {
+        color: inherit;
+      }
+    }
+
+    row:hover:not(:selected) button {
+      color: mix($bg_color, $fg_color, 35%);
+
+      &:hover {
+        color: lighten(red, 15%);
+      }
+      &:active {
+        color: $fg_color;
+      }
+    }
+
+    row:hover:selected button:hover {
+      color: lighten(red, 20%);
+
+      &:active {
+        color: $selected_fg_color;
+      }
+    }
+  }
+
+  .gedit-document-panel-dragged-row {
+    border: 1px solid $borders_color;
+    background-color: darken($bg_color, 10%);
+    color: $fg_color;
+  }
+
+  .gedit-side-panel-paned statusbar {
+    border-top: 1px solid $borders_color;
+    background-color: $bg_color;
+    border-radius: 0 0 $wm_radius $wm_radius;
+
+    frame > border { border: none; }
+  }
+
+  .gedit-search-slider {
+    background-color: lighten($bg_color, 2%);
+    padding: 6px;
+    border-color: $borders_color;
+    border-radius: 0 0 $bt_radius $bt_radius;
+    border-width: 0 1px 1px 1px;
+    border-style: solid;
+  }
+
+  .gedit-search-entry-occurrences-tag {
+    color: transparentize($fg_color, 0.4);
+    border: none;
+    margin: 2px;
+    padding: 2px;
+  }
+
+  .gedit-map-frame {
+    border {
+      @if $variant=='light' {
+        border-color: transparentize(black, 0.7);
+      }
+      border-width: 0;
+
+      &:dir(ltr) {
+        border-left-width: 1px;
+      }
+      &:dir(rtl) {
+        border-right-width: 1px;
+      }
+    }
+  }
+
+  &.tiled,
+  &.maximized,
+  &.fullscreen {
     > overlay > box.vertical {
       > paned.gedit-side-panel-paned {
         > box.vertical > stack > grid.horizontal {
@@ -692,112 +800,10 @@ window.org-gnome-gedit {
         }
       }
     }
-  }
-}
 
-.open-document-selector-treeview.view {
-  padding: 3px 6px 3px 6px;
-  border-color: $base_color; // disable borders, making them transparent doesn't work for some reason
-  &:hover {
-    background-color: mix($fg_color, $base_color, 7%);
-
-    &:selected {
-      color: $selected_fg_color;
-      background-color: $selected_bg_color;
-    }
-  }
-}
-
-.open-document-selector-name-label { color: $fg_color; }
-
-.open-document-selector-path-label {
-  color: mix($fg_color, $base_color, 50%);
-  font-size: smaller;
-
-  &:selected {
-    color: transparentize($selected_fg_color, 0.1);
-  }
-}
-
-.gedit-document-panel { // 'documents' pane
-
-  row.activatable { padding: 6px 0; }
-
-  row button { // 'close' button
-    min-width: 22px;
-    min-height: 22px;
-    padding: 0;
-    margin: 0 6px;
-    border-radius: 100px;
-    -gtk-outline-radius: 100px;
-
-    image {
-      color: inherit;
-    }
-  }
-
-  row:hover:not(:selected) button {
-    color: mix($bg_color, $fg_color, 35%);
-
-    &:hover {
-      color: lighten(red, 15%);
-    }
-    &:active {
-      color: $fg_color;
-    }
-  }
-
-  row:hover:selected button:hover {
-    color: lighten(red, 20%);
-
-    &:active {
-      color: $selected_fg_color;
-    }
-  }
-}
-
-.gedit-document-panel-dragged-row {
-  border: 1px solid $borders_color;
-  background-color: darken($bg_color, 10%);
-  color: $fg_color;
-}
-
-.gedit-side-panel-paned statusbar {
-  border-top: 1px solid $borders_color;
-  background-color: $bg_color;
-  border-radius: 0 0 $wm_radius $wm_radius;
-
-  frame > border { border: none; }
-}
-
-.gedit-search-slider {
-  background-color: lighten($bg_color, 2%);
-  padding: 6px;
-  border-color: $borders_color;
-  border-radius: 0 0 $bt_radius $bt_radius;
-  border-width: 0 1px 1px 1px;
-  border-style: solid;
-}
-
-.gedit-search-entry-occurrences-tag {
-  color: transparentize($fg_color, 0.4);
-  border: none;
-  margin: 2px;
-  padding: 2px;
-}
-
-.gedit-map-frame {
-  border {
-    @if $variant=='light' {
-      border-color: transparentize(black, 0.7);
-    }
-    border-width: 0;
-
-    &:dir(ltr) {
-      border-left-width: 1px;
-    }
-    &:dir(rtl) {
-      border-right-width: 1px;
+    &.background.csd,
+    .gedit-side-panel-paned statusbar {
+      border-radius: 0 0 $maximized_radius $maximized_radius;
     }
   }
 }
@@ -1480,26 +1486,6 @@ list {
   @extend %side_headerbar_right;
 }
 
-// separator of sidebar on Gnome contol center and Gnome tweaks
-window.background.csd {
-  > hdyleaflet, > leaflet, > box.horizontal {
-    > separator.vertical {
-      @extend %side_separator;
-    }
-
-    > box.vertical {
-      > searchbar {
-        @extend %side_searchbar;
-      }
-    }
-  }
-
-  > hdyleaflet > box.vertical > stack.main-container { // Right side
-    background-color: $base_color;
-    border-bottom-right-radius: $wm_radius;
-  }
-}
-
 row#AutostartTitle.tweak {
   padding: 3px;
   background-color: $base_color;
@@ -1531,6 +1517,37 @@ row#AutostartTitle.tweak {
   }
 }
 
+// separator of sidebar on Gnome contol center and Gnome tweaks
+window.background.csd {
+  > hdyleaflet, > leaflet, > box.horizontal {
+    > separator.vertical {
+      @extend %side_separator;
+    }
+
+    > box.vertical {
+      > searchbar {
+        @extend %side_searchbar;
+      }
+    }
+  }
+
+  > hdyleaflet > box.vertical > stack.main-container { // Right side
+    background-color: $base_color;
+    border-bottom-right-radius: $wm_radius;
+  }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > hdyleaflet > box.vertical > stack.main-container {
+      border-bottom-right-radius: $maximized_radius;
+    }
+
+    // sidebar on gnome tweak
+    .tweak-categories {
+      border-radius: 0 0 0 $maximized_radius;
+    }
+  }
+}
+
 //
 //  Gnome Control Center
 //
@@ -1624,6 +1641,32 @@ window.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > stack {
+      border-radius: 0 0 $maximized_radius $maximized_radius;
+    }
+
+    > leaflet > stack.background, // > 3.38.0
+    > hdyleaflet > stack.background, // > 3.34.0
+    > box.horizontal > stack.background {
+      border-bottom-right-radius: $maximized_radius;
+
+      > widget {
+        > box.vertical > box.vertical { // Gnome 3.34 Wallpaper setting
+          > scrolledwindow > viewport.frame {
+            border-bottom-right-radius: $maximized_radius + 1px;
+          }
+        }
+      }
+    }
+
+    > leaflet > box.vertical > scrolledwindow.view, // > 3.38.0
+    > hdyleaflet > box.vertical > scrolledwindow.view, // > 3.34.0
+    > box.horizontal > box.vertical > scrolledwindow.view { // > 3.25.90
+      border-bottom-left-radius: $maximized_radius + 1px;
+    }
+  }
 }
 
 box.horizontal > separator.sidebar,
@@ -1646,6 +1689,12 @@ window#gnome-system-monitor.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > box.vertical > stack {
+      border-radius: 0 0 $maximized_radius $maximized_radius;
+    }
+  }
 }
 
 //
@@ -1668,6 +1717,24 @@ stack {
   }
 }
 
+window.background.csd {
+  &.maximized, &.tiled, &.fullscreen {
+    stack {
+      > grid.vertical {
+        > scrolledwindow {
+          border-radius: 0 0 $maximized_radius $maximized_radius;
+
+          > viewport.frame {
+            list {
+              border-radius: 0 0 $maximized_radius $maximized_radius;
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
 //
 // Gnome Contacts
 //
@@ -1720,6 +1787,19 @@ window.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > overlay > hdyleaflet,
+    > overlay > leaflet {
+      > stack > frame > grid.vertical {
+        border-bottom-left-radius: $maximized_radius;
+      }
+
+      > overlay > scrolledwindow > viewport.frame {
+        border-bottom-right-radius: $maximized_radius;
+      }
+    }
+  }
 }
 
 entry.contacts-postal-entry {
@@ -1773,6 +1853,12 @@ window.background.csd {
   > box.vertical > overlay > stack.background {
     border-radius: 0 0 $wm_radius $wm_radius;
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > box.vertical > overlay > stack.background {
+      border-radius: 0 0 $maximized_radius $maximized_radius;
+    }
+  }
 }
 
 //
@@ -1781,11 +1867,20 @@ window.background.csd {
 #weather-page,
 #weekly-forecast-frame {
   border-bottom-right-radius: $wm_radius;
+
+  .maximized &, .tiled &, .fullscreen & {
+    border-bottom-right-radius: $maximized_radius;
+  }
 }
 
 #weather-page-content-view {
   border-bottom-right-radius: $wm_radius;
   border-bottom-left-radius: $wm_radius;
+
+  .maximized &, .tiled &, .fullscreen & {
+  border-bottom-left-radius: $maximized_radius;
+    border-bottom-right-radius: $maximized_radius;
+  }
 }
 
 //
@@ -1807,6 +1902,10 @@ window.background.csd.unified {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    border-radius: 0 0 $maximized_radius $maximized_radius;
+  }
 }
 
 hdyviewswitcherbar > actionbar,
@@ -1823,6 +1922,12 @@ viewswitcherbar > actionbar { // Gnome 3.38
     background-color: $dark_sidebar_bg;
     border-bottom-left-radius: $wm_radius;
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    .sidebar {
+      border-bottom-left-radius: $maximized_radius;
+    }
+  }
 }
 
 stack.view.polari-entry-area {
@@ -1843,6 +1948,10 @@ stack.view.polari-entry-area {
       background-image: none;
     }
   }
+
+  .maximized &, .tiled &, .fullscreen & {
+    border-bottom-right-radius: $maximized_radius;
+  }
 }
 
 stack:disabled.view.polari-entry-area { background-image: image($bg_color); }
@@ -2041,8 +2150,8 @@ window.background {
         &:checked { @include button(flat-checked); border-color: $borders_color; }
       }
 
-      &.suggested-action {  // '=' button
-      }
+      // &.suggested-action {  // '=' button
+      // }
     }
   }
 }
@@ -2171,6 +2280,12 @@ flowboxchild.bookmark-tag-widget {
   .sidebar.rooms-sidebar {
     border-bottom-left-radius: $wm_radius;
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    .sidebar.rooms-sidebar {
+      border-bottom-left-radius: $maximized_radius;
+    }
+  }
 }
 
 //
@@ -2206,6 +2321,14 @@ window.background.csd { // Documents actionbar
       border-radius: 0 0 $wm_radius $wm_radius;
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > box.vertical > overlay > stack > box.vertical {
+      > actionbar {
+        border-radius: 0 0 $maximized_radius $maximized_radius;
+      }
+    }
+  }
 }
 
 //
@@ -2229,6 +2352,20 @@ window.background.csd {
     background-color: transparent;
     border-radius: 0 0 $wm_radius $wm_radius;
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > box.vertical {
+      > scrolledwindow {
+        > iconview.view.content-view:not(:hover):not(:selected) {
+          border-radius: $maximized_radius;
+        }
+      }
+    }
+
+    evview.view.content-view {
+      border-radius: 0 0 $maximized_radius $maximized_radius;
+    }
+  }
 }
 
 //
@@ -2256,6 +2393,20 @@ window.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > grid.horizontal > paned.horizontal {
+      > scrolledwindow {
+        border-radius: 0 0 $maximized_radius $maximized_radius;
+      }
+
+      > box.vertical {
+        > scrolledwindow {
+          border-radius: 0 0 0 $maximized_radius;
+        }
+      }
+    }
+  }
 }
 
 //
@@ -2468,6 +2619,13 @@ window.background.csd {
   > stack > box > stack > scrolledwindow > viewport > list { // ArcMenu setting sidebar
     border-bottom-left-radius: $wm_radius;
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > stack > box > box > list,
+    > stack > box > stack > scrolledwindow > viewport > list { // ArcMenu setting sidebar
+      border-bottom-left-radius: $maximized_radius;
+    }
+  }
 }
 
 //
@@ -2783,6 +2941,12 @@ window.background.csd.thunar {
       background-color: transparent;
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > grid.horizontal > paned.horizontal > scrolledwindow.frame.sidebar.shortcuts-pane {
+      border-bottom-left-radius: $maximized_radius;
+    }
+  }
 }
 
 window.thunar {
@@ -2969,6 +3133,32 @@ window#GearyMainWindow.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > overlay > box.vertical {
+      > paned {
+        > .sidebar {
+          border-bottom-left-radius: $maximized_radius;
+        }
+      }
+    }
+
+    stack#conversation_viewer {
+      border-bottom-right-radius: $maximized_radius + 1px;
+
+      scrolledwindow.geary-conversation-scroller {
+        viewport.frame {
+          border-bottom-right-radius: $maximized_radius;
+        }
+      }
+    }
+
+    paned.geary-sidebar-pane-separator {
+      statusbar {
+        border-bottom-left-radius: $maximized_radius;
+      }
+    }
+  }
 }
 
 //
@@ -3350,6 +3540,14 @@ window.background.csd {
       border-bottom-right-radius: $wm_radius;
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > box.horizontal > stack {
+      > box.vertical > notebook > stack {
+        border-bottom-right-radius: $maximized_radius;
+      }
+    }
+  }
 }
 
 //
@@ -3367,6 +3565,20 @@ window.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > grid.vertical > overlay > grid.vertical {
+      > grid.horizontal {
+        > .sidebar {
+          border-bottom-left-radius: $maximized_radius;
+        }
+
+        > paned.horizontal > stack {
+          border-bottom-right-radius: $maximized_radius;
+        }
+      }
+    }
+  }
 }
 
 //
@@ -3765,6 +3977,18 @@ window.background.csd {
       }
     }
   }
+
+  &.maximized, &.tiled, &.fullscreen {
+    > stack > stack {
+      > paned.horizontal {
+        > scrolledwindow > viewport.frame {
+          list {
+            border-bottom-left-radius: $maximized_radius;
+          }
+        }
+      }
+    }
+  }
 }
 
 .dynamic-notebook {
diff --git a/src/sass/gtk/_common.scss b/src/sass/gtk/_common.scss
index 40afcdc1..a41e1e6a 100644
--- a/src/sass/gtk/_common.scss
+++ b/src/sass/gtk/_common.scss
@@ -33,7 +33,14 @@
 
   // > box > stack { background-color: $bg_color; }
 
-  &.csd { border-radius: 0 0 $wm_radius $wm_radius; } // Set csd windows botttom border radius
+  &.csd {
+    border-radius: 0 0 $wm_radius $wm_radius; // Set csd windows botttom border radius
+
+    &.maximized, &.tiled, &.fullscreen {
+      border-radius: 0 0 $maximized_radius $maximized_radius; // Set csd windows botttom border radius
+    }
+  }
+
   &.solid-csd { border-radius: 0; }
 }