Adwaita: housekeeping

cleaned up unneded selectors and leftovers from previous versions.

3 files changed, 101 insertions, 782 deletions

diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 50992f900b..bee9621344 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -249,8 +249,8 @@ entry {
   &.flat:focus {
     min-height: 0;
     padding: 2px;
-    @include entry(normal, $edge:none);
-    border: none;
+    background-image: none;
+    border-color: transparent;
     border-radius: 0;
   }
 
@@ -263,9 +263,7 @@ entry {
   &:backdrop:disabled { @include entry(backdrop-insensitive); }
 
   selection,
-  selection:focus {
-    @extend %selected_items;
-  }
+  selection:focus { @extend %selected_items; }
 
   progress {
     margin: 1px;
@@ -720,7 +718,7 @@ button {
 // all the following is for the +|- buttons on inline toolbars, that way
 // should really be deprecated...
 .inline-toolbar toolbutton > button { // redefining the button look is
-                                          // needed since those are flat...
+                                      // needed since those are flat...
   @include button(normal);
 
   &:hover { @include button(hover); }
@@ -1047,31 +1045,7 @@ spinbutton {
       min-width: 32px;
       padding: 0;
 
-      &.up {
-        @extend %top_button;
-        @include button(normal, $edge:none);
-
-        &:active {
-          @extend %top_button;
-          @include button(active, $edge:none);
-        }
-
-        &:hover {
-          @extend %top_button;
-          @include button(hover, $edge:none);
-        }
-
-        &:disabled {
-          @extend %top_button;
-          @include button(insensitive, $edge:none);
-        }
-
-        &:backdrop {
-          @extend %top_button;
-          @include button(backdrop, $edge:none);
-          &:disabled { @include button(backdrop-insensitive, $edge:none); }
-        }
-      }
+      &.up { @extend %top_button; }
 
       &.down { @extend %bottom_button; }
     }
@@ -1264,78 +1238,75 @@ headerbar {
     .subtitle:link { @extend *:link:selected;  }
 
     button {
-      @include button(normal, $selected_bg_color, $selected_fg_color, $_hc);
+      @include button(normal, $selected_bg_color, $selected_fg_color);
 
       &.flat { @include button(undecorated); }
 
-      &:hover { @include button(hover, $selected_bg_color, $selected_fg_color, $_hc); }
+      &:hover { @include button(hover, $selected_bg_color, $selected_fg_color); }
 
-      &:active, &:checked { @include button(active, $selected_bg_color, $selected_fg_color, $_hc); }
+      &:active, &:checked { @include button(active, $selected_bg_color, $selected_fg_color); }
 
       &:backdrop,
       &.flat:backdrop {
-        @include button(backdrop, $selected_bg_color, $selected_fg_color, $_hc);
+        @include button(backdrop, $selected_bg_color, $selected_fg_color);
         -gtk-icon-effect: none;
         border-color: $selected_borders_color;
 
         &:active,
         &:checked {
-          @include button(backdrop-active, $selected_bg_color, $selected_fg_color, $_hc);
+          @include button(backdrop-active, $selected_bg_color, $selected_fg_color);
           border-color: $selected_borders_color;
         }
 
         &:disabled {
-          @include button(backdrop-insensitive, $selected_bg_color, $selected_fg_color, $_hc);
+          @include button(backdrop-insensitive, $selected_bg_color, $selected_fg_color);
           border-color: $selected_borders_color;
         }
 
         &:disabled:active,
         &:disabled:checked {
-          @include button(backdrop-insensitive-active, $selected_bg_color,
-                          $selected_fg_color, $_hc);
+          @include button(backdrop-insensitive-active, $selected_bg_color, $selected_fg_color);
           border-color: $selected_borders_color;
         }
       }
 
       &.flat:backdrop,
       &.flat:disabled,
-      &.flat:disabled:backdrop {
-        @include button(undecorated);
-      }
+      &.flat:disabled:backdrop { @include button(undecorated); }
 
       &:disabled {
-        @include button(insensitive, $selected_bg_color, $selected_fg_color, $_hc);
+        @include button(insensitive, $selected_bg_color, $selected_fg_color);
 
         &:active,
-        &:checked { @include button(insensitive-active, $selected_bg_color, $selected_fg_color, $_hc); }
+        &:checked { @include button(insensitive-active, $selected_bg_color, $selected_fg_color); }
       }
 
       &.suggested-action {
-        @include button(normal, $edge:$_hc);
+        @include button(normal);
         border-color: $selected_borders_color;
 
         &:hover {
-          @include button(hover, $edge:$_hc);
+          @include button(hover);
           border-color: $selected_borders_color;
         }
 
         &:active {
-          @include button(active, $edge:$_hc);
+          @include button(active);
           border-color: $selected_borders_color;
         }
 
         &:disabled {
-          @include button(insensitive, $edge:$_hc);
+          @include button(insensitive);
           border-color: $selected_borders_color;
         }
 
         &:backdrop {
-          @include button(backdrop, $edge:$_hc);
+          @include button(backdrop);
           border-color: $selected_borders_color;
         }
 
         &:backdrop:disabled {
-          @include button(backdrop-insensitive, $edge:$_hc);
+          @include button(backdrop-insensitive);
           border-color: $selected_borders_color;
         }
       }
@@ -2240,7 +2211,7 @@ switch {
 
   &:active slider { border: 1px solid $selected_borders_color; }
 
-  &:disabled slider { @include button(insensitive, $edge: none); }
+  &:disabled slider { @include button(insensitive); }
 
   &:backdrop {
     slider { @include button(backdrop); }
@@ -2957,59 +2928,13 @@ row:selected {
   @extend %selected_items;
 
   button {
-    @include button(normal, $edge:none);
     @if $variant == 'light' { border-color: $selected_borders_color; }
 
-    &.flat {
-      @include button(undecorated, $edge:none);
+    &.flat:not(:active):not(:checked):not(:hover):not(disabled) {
       color: $selected_fg_color;
-    }
-
-    &:hover {
-      @include button(hover, $edge:none);
-      @if $variant == 'light' { border-color: $selected_borders_color; }
-    }
-
-    &:active,
-    &:checked {
-      @include button(active, $edge:none);
-      @if $variant == 'light' { border-color: $selected_borders_color; }
-    }
-
-    &:backdrop,
-    &.flat:backdrop {
-      @include button(backdrop, $edge:none);
-      @if $variant == 'light' { border-color: $selected_borders_color; }
-
-      &:active,
-      &:checked {
-        @include button(backdrop-active, $edge:none);
-        @if $variant == 'light' { border-color: $selected_borders_color; }
-      }
-
-      &:disabled {
-        @include button(backdrop-insensitive, $edge:none);
-        @if $variant == 'light' { border-color: $selected_borders_color; }
-
-        &:active,
-        &:checked {
-          @include button(backdrop-insensitive-active, $edge:none);
-          @if $variant == 'light' { border-color: $selected_borders_color; }
-        }
-      }
-    }
-
-    &.flat:backdrop {
-      @include button(undecorated);
-      color: if($variant=='light', $backdrop_base_color, $backdrop_fg_color);
-    }
-
-    &:disabled {
-      @include button(insensitive, $edge:none);
-      @if $variant == 'light' { border-color: $selected_borders_color; }
+      border-color: transparent;
 
-      &:active,
-      &:checked { @include button(insensitive-active, $edge:none); }
+      &:backdrop { color: if($variant=='light', $backdrop_base_color, $backdrop_fg_color); }
     }
   }
 }
@@ -3140,86 +3065,20 @@ messagedialog { // Message Dialog styling
     .dialog-action-area button {
       padding: 10px 14px; // labels are not vertically centered on message dialog, this is a workaround
       border-radius: 0;
-      @include button(normal, $edge:none);
-      @extend %middle_button;
-
-      &:hover {
-        @include button(hover, $edge:none);
-        @extend %middle_button;
-      }
-
-      &:active {
-        @include button(active, $edge:none);
-        @extend %middle_button;
-      }
-
-      &:disabled {
-        @include button(insensitive, $edge:none);
-        @extend %middle_button;
-      }
-
-      &:backdrop {
-        @include button(backdrop, $edge:none);
-        @extend %middle_button;
-      }
-
-      &:backdrop:disabled {
-        @include button(backdrop-insensitive, $edge:none);
-        @extend %middle_button;
-      }
-
-      @each $b_type, $b_color in (suggested-action, $selected_bg_color),
-                                 (destructive-action, $destructive_color) {
-        &.#{$b_type} {
-          @include button(normal, $b_color, white, $edge:none);
-          @extend %middle_button;
-
-          &:hover {
-            @include button(hover, $b_color, white, $edge:none);
-            @extend %middle_button;
-          }
-
-          &:active {
-            @include button(active, $b_color, white, $edge:none);
-            @extend %middle_button;
-          }
-
-          &:backdrop {
-            @include button(backdrop, $b_color, white, $edge:none);
-            @extend %middle_button;
-
-            &:disabled {
-              @include button(backdrop-insensitive, $edge:none);
-              @extend %middle_button;
-            }
-          }
-
-          &:disabled {
-            @include button(insensitive, $edge:none);
-            @extend %middle_button;
-          }
-        }
-      }
-
-      &:first-child{ @extend %first_button; }
-      &:last-child { @extend %last_button; }
-    }
-
-    %middle_button {
       border-left-style: solid;
       border-right-style: none;
       border-bottom-style: none;
-    }
 
-    %last_button {
-      border-bottom-right-radius: 7px;
-      -gtk-outline-bottom-right-radius: 5px;
-    }
+      &:first-child{
+        border-left-style: none;
+        border-bottom-left-radius: 7px;
+        -gtk-outline-bottom-left-radius: 5px;
+      }
 
-    %first_button {
-      border-left-style: none;
-      border-bottom-left-radius: 7px;
-      -gtk-outline-bottom-left-radius: 5px;
+      &:last-child {
+        border-bottom-right-radius: 7px;
+        -gtk-outline-bottom-right-radius: 5px;
+      }
     }
   }
 }
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 20b4788bc5..80df69eba3 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -197,12 +197,8 @@ entry, spinbutton:not(.vertical) {
   entry.flat, spinbutton.flat:not(.vertical), entry.flat:focus, spinbutton.flat:focus:not(.vertical) {
     min-height: 0;
     padding: 2px;
-    background-color: #292929;
-    background-image: linear-gradient(to bottom, #1d2020, #242525 3px, #292929 90%);
-    color: white;
-    border-color: #1c1f1f;
-    box-shadow: inset 0 0 0 1px rgba(33, 93, 156, 0);
-    border: none;
+    background-image: none;
+    border-color: transparent;
     border-radius: 0; }
   entry:focus, spinbutton:focus:not(.vertical) {
     background-color: #292929;
@@ -1362,52 +1358,7 @@ spinbutton.vertical button {
   min-height: 32px;
   min-width: 32px;
   padding: 0; }
-  spinbutton.vertical button.up {
-    color: #eeeeec;
-    outline-color: rgba(238, 238, 236, 0.3);
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #343a3a, #2f3434 60%, #2a2f2f);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-    spinbutton.vertical button.up:active {
-      color: #eeeeec;
-      outline-color: rgba(238, 238, 236, 0.3);
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #232727, #2d3232);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    spinbutton.vertical button.up:hover {
-      color: #eeeeec;
-      outline-color: rgba(238, 238, 236, 0.3);
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #3b4242, #343a3a 60%, #2f3434);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-    spinbutton.vertical button.up:disabled {
-      color: #949796;
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #333636);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    spinbutton.vertical button.up:backdrop {
-      color: #949796;
-      border-color: #1f2222;
-      background-image: linear-gradient(to bottom, #393f3f);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      spinbutton.vertical button.up:backdrop:disabled {
-        color: #5d6767;
-        border-color: #1f2222;
-        background-image: linear-gradient(to bottom, #333636);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-spinbutton.vertical button.up, spinbutton.vertical button.up:active, spinbutton.vertical button.up:hover, spinbutton.vertical button.up:disabled, spinbutton.vertical button.up:backdrop {
+spinbutton.vertical button.up {
   border-radius: 3px 3px 0 0;
   border-style: solid solid none solid; }
 spinbutton.vertical button.down {
@@ -1573,7 +1524,7 @@ headerbar {
       background-image: linear-gradient(to bottom, #1f5894, #1d538b 60%, #1b4e83);
       text-shadow: 0 -1px rgba(0, 0, 0, 0.70353);
       -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.70353);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.05), 0 1px rgba(40, 98, 159, 0.535); }
+      box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
       .selection-mode.titlebar:not(headerbar) button.flat, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow, .selection-mode.titlebar:not(headerbar) button.sidebar-button,
       .selection-mode.titlebar:not(headerbar) button.titlebutton,
       headerbar.selection-mode button.flat,
@@ -1594,7 +1545,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #2260a0, #1f5894 60%, #1d538b);
         text-shadow: 0 -1px rgba(0, 0, 0, 0.65553);
         -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.65553);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0.05), 0 1px rgba(40, 98, 159, 0.535); }
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
       .selection-mode.titlebar:not(headerbar) button:active, .selection-mode.titlebar:not(headerbar) button:checked,
       headerbar.selection-mode button:active,
       headerbar.selection-mode button:checked {
@@ -1604,7 +1555,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #194776, #1c5187);
         text-shadow: 0 -1px rgba(0, 0, 0, 0.78353);
         -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.78353);
-        box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6), 0 1px rgba(40, 98, 159, 0.535); }
+        box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
       .selection-mode.titlebar:not(headerbar) button:backdrop, .selection-mode.titlebar:not(headerbar) button.flat:backdrop, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop,
       .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop,
       headerbar.selection-mode button:backdrop,
@@ -1617,7 +1568,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #215d9c);
         text-shadow: none;
         -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0);
         -gtk-icon-effect: none;
         border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:active, .selection-mode.titlebar:not(headerbar) button:backdrop:checked, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:active, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:active, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:active,
@@ -1636,7 +1587,7 @@ headerbar {
           color: #d1dae3;
           border-color: #0b1e33;
           background-image: linear-gradient(to bottom, #184472);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:disabled, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled,
         .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop:disabled,
@@ -1650,7 +1601,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #22558b);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled:active,
         .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled:checked,
@@ -1668,7 +1619,7 @@ headerbar {
           color: #6c88a7;
           border-color: #0b1e33;
           background-image: linear-gradient(to bottom, #1d4877);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
       .selection-mode.titlebar:not(headerbar) button.flat:backdrop, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop,
       .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop, .selection-mode.titlebar:not(headerbar) button.flat:disabled, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:disabled, .selection-mode.titlebar:not(headerbar) button.sidebar-button:disabled,
@@ -1699,14 +1650,14 @@ headerbar {
         background-image: linear-gradient(to bottom, #22558b);
         text-shadow: none;
         -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0.535); }
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
         .selection-mode.titlebar:not(headerbar) button:disabled:active, .selection-mode.titlebar:not(headerbar) button:disabled:checked,
         headerbar.selection-mode button:disabled:active,
         headerbar.selection-mode button:disabled:checked {
           color: #a5b6c9;
           border-color: #0b1e33;
           background-image: linear-gradient(to bottom, #1b4470, #1d4877);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0.535); }
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
       .selection-mode.titlebar:not(headerbar) button.suggested-action,
       headerbar.selection-mode button.suggested-action {
         color: #eeeeec;
@@ -1715,7 +1666,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #343a3a, #2f3434 60%, #2a2f2f);
         text-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
         -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0.05), 0 1px rgba(40, 98, 159, 0.535);
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0.05);
         border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:hover,
         headerbar.selection-mode button.suggested-action:hover {
@@ -1725,7 +1676,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #3b4242, #343a3a 60%, #2f3434);
           text-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
           -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0.05), 0 1px rgba(40, 98, 159, 0.535);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0.05);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:active,
         headerbar.selection-mode button.suggested-action:active {
@@ -1735,7 +1686,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #232727, #2d3232);
           text-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
           -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-          box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6), 0 1px rgba(40, 98, 159, 0.535);
+          box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:disabled,
         headerbar.selection-mode button.suggested-action:disabled {
@@ -1744,7 +1695,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #333636);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0.535);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:backdrop,
         headerbar.selection-mode button.suggested-action:backdrop {
@@ -1753,7 +1704,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #393f3f);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:backdrop:disabled,
         headerbar.selection-mode button.suggested-action:backdrop:disabled {
@@ -1762,7 +1713,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #333636);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(40, 98, 159, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #0f2b48; }
     .selection-mode.titlebar:not(headerbar) .selection-menu, .selection-mode.titlebar:not(headerbar) .selection-menu:backdrop,
     headerbar.selection-mode .selection-menu,
@@ -3333,98 +3284,15 @@ row.activatable:selected.has-open-popup, row.activatable:selected:hover {
 row.activatable:selected:backdrop {
   background-color: #215d9c; }
 
-row:selected button {
-  color: #eeeeec;
-  outline-color: rgba(238, 238, 236, 0.3);
-  border-color: #1c1f1f;
-  background-image: linear-gradient(to bottom, #343a3a, #2f3434 60%, #2a2f2f);
-  text-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-  -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-  row:selected button.flat, row:selected notebook > header > tabs > arrow, row:selected button.sidebar-button, row:selected headerbar button.titlebutton, headerbar row:selected button.titlebutton,
-  row:selected .titlebar button.titlebutton,
-  .titlebar row:selected button.titlebutton {
-    border-color: transparent;
-    background-color: transparent;
-    background-image: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    color: #ffffff; }
-  row:selected button:hover {
-    color: #eeeeec;
-    outline-color: rgba(238, 238, 236, 0.3);
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #3b4242, #343a3a 60%, #2f3434);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-  row:selected button:active, row:selected button:checked {
-    color: #eeeeec;
-    outline-color: rgba(238, 238, 236, 0.3);
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #232727, #2d3232);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-    box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-  row:selected button:backdrop, row:selected button.flat:backdrop, row:selected notebook > header > tabs > arrow:backdrop, row:selected button.sidebar-button:backdrop, row:selected headerbar button.titlebutton:backdrop, headerbar row:selected button.titlebutton:backdrop,
-  row:selected .titlebar button.titlebutton:backdrop,
-  .titlebar row:selected button.titlebutton:backdrop {
-    color: #949796;
-    border-color: #1f2222;
-    background-image: linear-gradient(to bottom, #393f3f);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    row:selected button:backdrop:active, row:selected button:backdrop:checked, row:selected button.flat:backdrop:active, row:selected notebook > header > tabs > arrow:backdrop:active, row:selected button.sidebar-button:backdrop:active, row:selected headerbar button.titlebutton:backdrop:active, headerbar row:selected button.titlebutton:backdrop:active,
-    row:selected .titlebar button.titlebutton:backdrop:active,
-    .titlebar row:selected button.titlebutton:backdrop:active, row:selected button.flat:backdrop:checked, row:selected notebook > header > tabs > arrow:backdrop:checked, row:selected button.sidebar-button:backdrop:checked, row:selected headerbar button.titlebutton:backdrop:checked, headerbar row:selected button.titlebutton:backdrop:checked,
-    row:selected .titlebar button.titlebutton:backdrop:checked,
-    .titlebar row:selected button.titlebutton:backdrop:checked {
-      color: #949796;
-      border-color: #1f2222;
-      background-image: linear-gradient(to bottom, #303535);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    row:selected button:backdrop:disabled, row:selected button.flat:backdrop:disabled, row:selected notebook > header > tabs > arrow:backdrop:disabled, row:selected button.sidebar-button:backdrop:disabled, row:selected headerbar button.titlebutton:backdrop:disabled, headerbar row:selected button.titlebutton:backdrop:disabled,
-    row:selected .titlebar button.titlebutton:backdrop:disabled,
-    .titlebar row:selected button.titlebutton:backdrop:disabled {
-      color: #5d6767;
-      border-color: #1f2222;
-      background-image: linear-gradient(to bottom, #333636);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      row:selected button:backdrop:disabled:active, row:selected button:backdrop:disabled:checked, row:selected button.flat:backdrop:disabled:active, row:selected notebook > header > tabs > arrow:backdrop:disabled:active, row:selected button.sidebar-button:backdrop:disabled:active, row:selected headerbar button.titlebutton:backdrop:disabled:active, headerbar row:selected button.titlebutton:backdrop:disabled:active,
-      row:selected .titlebar button.titlebutton:backdrop:disabled:active,
-      .titlebar row:selected button.titlebutton:backdrop:disabled:active, row:selected button.flat:backdrop:disabled:checked, row:selected notebook > header > tabs > arrow:backdrop:disabled:checked, row:selected button.sidebar-button:backdrop:disabled:checked, row:selected headerbar button.titlebutton:backdrop:disabled:checked, headerbar row:selected button.titlebutton:backdrop:disabled:checked,
-      row:selected .titlebar button.titlebutton:backdrop:disabled:checked,
-      .titlebar row:selected button.titlebutton:backdrop:disabled:checked {
-        color: #5d6767;
-        border-color: #1f2222;
-        background-image: linear-gradient(to bottom, #272929);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  row:selected button.flat:backdrop, row:selected notebook > header > tabs > arrow:backdrop, row:selected button.sidebar-button:backdrop, row:selected headerbar button.titlebutton:backdrop, headerbar row:selected button.titlebutton:backdrop,
-  row:selected .titlebar button.titlebutton:backdrop,
-  .titlebar row:selected button.titlebutton:backdrop {
-    border-color: transparent;
-    background-color: transparent;
-    background-image: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
+row:selected button.flat:not(:active):not(:checked):not(:hover):not(disabled), row:selected notebook > header > tabs > arrow:not(:active):not(:checked):not(:hover):not(disabled), row:selected button.sidebar-button:not(:active):not(:checked):not(:hover):not(disabled), row:selected headerbar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled), headerbar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled),
+row:selected .titlebar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled),
+.titlebar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled) {
+  color: #ffffff;
+  border-color: transparent; }
+  row:selected button.flat:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected notebook > header > tabs > arrow:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected button.sidebar-button:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected headerbar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop, headerbar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop,
+  row:selected .titlebar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop,
+  .titlebar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop {
     color: #949796; }
-  row:selected button:disabled {
-    color: #949796;
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #333636);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    row:selected button:disabled:active, row:selected button:disabled:checked {
-      color: #949796;
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #313434, #333636);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
 
 row {
   transition: all 150ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
@@ -3508,151 +3376,16 @@ messagedialog.csd.background {
 messagedialog.csd .dialog-action-area button {
   padding: 10px 14px;
   border-radius: 0;
-  color: #eeeeec;
-  outline-color: rgba(238, 238, 236, 0.3);
-  border-color: #1c1f1f;
-  background-image: linear-gradient(to bottom, #343a3a, #2f3434 60%, #2a2f2f);
-  text-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-  -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.81176);
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-  messagedialog.csd .dialog-action-area button:hover {
-    color: #eeeeec;
-    outline-color: rgba(238, 238, 236, 0.3);
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #3b4242, #343a3a 60%, #2f3434);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.76376);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-  messagedialog.csd .dialog-action-area button:active {
-    color: #eeeeec;
-    outline-color: rgba(238, 238, 236, 0.3);
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #232727, #2d3232);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.89176);
-    box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-  messagedialog.csd .dialog-action-area button:disabled {
-    color: #949796;
-    border-color: #1c1f1f;
-    background-image: linear-gradient(to bottom, #333636);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button:backdrop {
-    color: #949796;
-    border-color: #1f2222;
-    background-image: linear-gradient(to bottom, #393f3f);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button:backdrop:disabled {
-    color: #5d6767;
-    border-color: #1f2222;
-    background-image: linear-gradient(to bottom, #333636);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button.suggested-action {
-    color: white;
-    outline-color: rgba(255, 255, 255, 0.3);
-    border-color: #0b1e33;
-    background-image: linear-gradient(to bottom, #1f5894, #1d538b 60%, #1b4e83);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.70353);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.70353);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-    messagedialog.csd .dialog-action-area button.suggested-action:hover {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #0b1e33;
-      background-image: linear-gradient(to bottom, #2260a0, #1f5894 60%, #1d538b);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.65553);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.65553);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.05); }
-    messagedialog.csd .dialog-action-area button.suggested-action:active {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #0b1e33;
-      background-image: linear-gradient(to bottom, #194776, #1c5187);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.78353);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.78353);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    messagedialog.csd .dialog-action-area button.suggested-action:backdrop {
-      color: #d3dfeb;
-      border-color: #0b1e33;
-      background-image: linear-gradient(to bottom, #215d9c);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      messagedialog.csd .dialog-action-area button.suggested-action:backdrop:disabled {
-        color: #5d6767;
-        border-color: #1f2222;
-        background-image: linear-gradient(to bottom, #333636);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    messagedialog.csd .dialog-action-area button.suggested-action:disabled {
-      color: #949796;
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #333636);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button.destructive-action {
-    color: white;
-    outline-color: rgba(255, 255, 255, 0.3);
-    border-color: #5e0707;
-    background-image: linear-gradient(to bottom, #cc0f0f, #c20f0f 60%, #b90e0e);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.64078);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.64078);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.2); }
-    messagedialog.csd .dialog-action-area button.destructive-action:hover {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #5e0707;
-      background-image: linear-gradient(to bottom, #da1010, #cc0f0f 60%, #c20f0f);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.59278);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.59278);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.2); }
-    messagedialog.csd .dialog-action-area button.destructive-action:active {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #5e0707;
-      background-image: linear-gradient(to bottom, #aa0d0d, #bd0e0e);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.72078);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.72078);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    messagedialog.csd .dialog-action-area button.destructive-action:backdrop {
-      color: #f7cfcf;
-      border-color: #5e0707;
-      background-image: linear-gradient(to bottom, #d51010);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      messagedialog.csd .dialog-action-area button.destructive-action:backdrop:disabled {
-        color: #5d6767;
-        border-color: #1f2222;
-        background-image: linear-gradient(to bottom, #333636);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    messagedialog.csd .dialog-action-area button.destructive-action:disabled {
-      color: #949796;
-      border-color: #1c1f1f;
-      background-image: linear-gradient(to bottom, #333636);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-messagedialog.csd .dialog-action-area button, messagedialog.csd .dialog-action-area button:hover, messagedialog.csd .dialog-action-area button:active, messagedialog.csd .dialog-action-area button:disabled, messagedialog.csd .dialog-action-area button:backdrop, messagedialog.csd .dialog-action-area button:backdrop:disabled, messagedialog.csd .dialog-action-area button.suggested-action, messagedialog.csd .dialog-action-area button.suggested-action:hover, messagedialog.csd .dialog-action-area button.suggested-action:active, messagedialog.csd .dialog-action-area button.suggested-action:backdrop, messagedialog.csd .dialog-action-area button.suggested-action:backdrop:disabled, messagedialog.csd .dialog-action-area button.suggested-action:disabled, messagedialog.csd .dialog-action-area button.destructive-action, messagedialog.csd .dialog-action-area button.destructive-action:hover, messagedialog.csd .dialog-action-area button.destructive-action:active, messagedialog.csd .dialog-action-area button.destructive-action:backdrop, messagedialog.csd .dialog-action-area button.destructive-action:backdrop:disabled, messagedialog.csd .dialog-action-area button.destructive-action:disabled {
   border-left-style: solid;
   border-right-style: none;
   border-bottom-style: none; }
-messagedialog.csd .dialog-action-area button:last-child {
-  border-bottom-right-radius: 7px;
-  -gtk-outline-bottom-right-radius: 5px; }
-messagedialog.csd .dialog-action-area button:first-child {
-  border-left-style: none;
-  border-bottom-left-radius: 7px;
-  -gtk-outline-bottom-left-radius: 5px; }
+  messagedialog.csd .dialog-action-area button:first-child {
+    border-left-style: none;
+    border-bottom-left-radius: 7px;
+    -gtk-outline-bottom-left-radius: 5px; }
+  messagedialog.csd .dialog-action-area button:last-child {
+    border-bottom-right-radius: 7px;
+    -gtk-outline-bottom-right-radius: 5px; }
 
 filechooser .dialog-action-box {
   border-top: 1px solid #1c1f1f; }
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 647800bea6..4123518994 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -197,12 +197,8 @@ entry, spinbutton:not(.vertical) {
   entry.flat, spinbutton.flat:not(.vertical), entry.flat:focus, spinbutton.flat:focus:not(.vertical) {
     min-height: 0;
     padding: 2px;
-    background-color: #ffffff;
-    background-image: linear-gradient(to bottom, #d3d3d1, #fcfcfc 2px, #ffffff 90%);
-    color: black;
-    border-color: #9d9d99;
-    box-shadow: inset 0 0 0 1px rgba(74, 144, 217, 0);
-    border: none;
+    background-image: none;
+    border-color: transparent;
     border-radius: 0; }
   entry:focus, spinbutton:focus:not(.vertical) {
     background-color: #ffffff;
@@ -1366,52 +1362,7 @@ spinbutton.vertical button {
   min-height: 32px;
   min-width: 32px;
   padding: 0; }
-  spinbutton.vertical button.up {
-    color: #2e3436;
-    outline-color: rgba(46, 52, 54, 0.3);
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #e8e8e7, #dededd 60%, #cfcfcd);
-    text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.8); }
-    spinbutton.vertical button.up:active {
-      color: #2e3436;
-      outline-color: rgba(46, 52, 54, 0.3);
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #c8c8c5, #dcdcda);
-      text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-      -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    spinbutton.vertical button.up:hover {
-      color: #2e3436;
-      outline-color: rgba(46, 52, 54, 0.3);
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #f7f7f7, #e8e8e7 60%, #dededd);
-      text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-      -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-      box-shadow: inset 0 1px white; }
-    spinbutton.vertical button.up:disabled {
-      color: #8b8e8f;
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #f1f1f1);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    spinbutton.vertical button.up:backdrop {
-      color: #8b8e8f;
-      border-color: #a5a5a1;
-      background-image: linear-gradient(to bottom, #e8e8e7);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      spinbutton.vertical button.up:backdrop:disabled {
-        color: #c3c3c0;
-        border-color: #a5a5a1;
-        background-image: linear-gradient(to bottom, #f1f1f1);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-spinbutton.vertical button.up, spinbutton.vertical button.up:active, spinbutton.vertical button.up:hover, spinbutton.vertical button.up:disabled, spinbutton.vertical button.up:backdrop {
+spinbutton.vertical button.up {
   border-radius: 3px 3px 0 0;
   border-style: solid solid none solid; }
 spinbutton.vertical button.down {
@@ -1577,7 +1528,7 @@ headerbar {
       background-image: linear-gradient(to bottom, #4a90d9, #3986d5 60%, #2a76c6);
       text-shadow: 0 -1px rgba(0, 0, 0, 0.54353);
       -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.54353);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.4), 0 1px rgba(146, 188, 232, 0.9); }
+      box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
       .selection-mode.titlebar:not(headerbar) button.flat, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow, .selection-mode.titlebar:not(headerbar) button.sidebar-button,
       .selection-mode.titlebar:not(headerbar) button.titlebutton,
       headerbar.selection-mode button.flat,
@@ -1598,7 +1549,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #63a0de, #4a90d9 60%, #3986d5);
         text-shadow: 0 -1px rgba(0, 0, 0, 0.49553);
         -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.49553);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0.4), 0 1px rgba(146, 188, 232, 0.9); }
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
       .selection-mode.titlebar:not(headerbar) button:active, .selection-mode.titlebar:not(headerbar) button:checked,
       headerbar.selection-mode button:active,
       headerbar.selection-mode button:checked {
@@ -1608,7 +1559,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #276fba, #3583d5);
         text-shadow: 0 -1px rgba(0, 0, 0, 0.62353);
         -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.62353);
-        box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6), 0 1px rgba(146, 188, 232, 0.9); }
+        box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
       .selection-mode.titlebar:not(headerbar) button:backdrop, .selection-mode.titlebar:not(headerbar) button.flat:backdrop, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop,
       .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop,
       headerbar.selection-mode button:backdrop,
@@ -1621,7 +1572,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #4a90d9);
         text-shadow: none;
         -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0);
         -gtk-icon-effect: none;
         border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:active, .selection-mode.titlebar:not(headerbar) button:backdrop:checked, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:active, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:active, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:active,
@@ -1640,7 +1591,7 @@ headerbar {
           color: #d4e4f4;
           border-color: #2a76c6;
           background-image: linear-gradient(to bottom, #2a76c6);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:disabled, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled,
         .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop:disabled,
@@ -1654,7 +1605,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #65a1df);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled:active,
         .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop:disabled:active, .selection-mode.titlebar:not(headerbar) button.flat:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop:disabled:checked, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop:disabled:checked,
@@ -1672,7 +1623,7 @@ headerbar {
           color: #8db9e8;
           border-color: #5094db;
           background-image: linear-gradient(to bottom, #5094db);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
       .selection-mode.titlebar:not(headerbar) button.flat:backdrop, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:backdrop, .selection-mode.titlebar:not(headerbar) button.sidebar-button:backdrop,
       .selection-mode.titlebar:not(headerbar) button.titlebutton:backdrop, .selection-mode.titlebar:not(headerbar) button.flat:disabled, .selection-mode.titlebar:not(headerbar) notebook > header > tabs > arrow:disabled, .selection-mode.titlebar:not(headerbar) button.sidebar-button:disabled,
@@ -1703,14 +1654,14 @@ headerbar {
         background-image: linear-gradient(to bottom, #65a1df);
         text-shadow: none;
         -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0.9); }
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
         .selection-mode.titlebar:not(headerbar) button:disabled:active, .selection-mode.titlebar:not(headerbar) button:disabled:checked,
         headerbar.selection-mode button:disabled:active,
         headerbar.selection-mode button:disabled:checked {
           color: #b9d4f1;
           border-color: #1c5187;
           background-image: linear-gradient(to bottom, #4b8dd3, #5094db);
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0.9); }
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
       .selection-mode.titlebar:not(headerbar) button.suggested-action,
       headerbar.selection-mode button.suggested-action {
         color: #2e3436;
@@ -1719,7 +1670,7 @@ headerbar {
         background-image: linear-gradient(to bottom, #e8e8e7, #dededd 60%, #cfcfcd);
         text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
         -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0.8), 0 1px rgba(146, 188, 232, 0.9);
+        box-shadow: inset 0 1px rgba(255, 255, 255, 0.8);
         border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:hover,
         headerbar.selection-mode button.suggested-action:hover {
@@ -1729,7 +1680,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #f7f7f7, #e8e8e7 60%, #dededd);
           text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
           -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-          box-shadow: inset 0 1px white, 0 1px rgba(146, 188, 232, 0.9);
+          box-shadow: inset 0 1px white;
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:active,
         headerbar.selection-mode button.suggested-action:active {
@@ -1739,7 +1690,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #c8c8c5, #dcdcda);
           text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
           -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-          box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6), 0 1px rgba(146, 188, 232, 0.9);
+          box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6);
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:disabled,
         headerbar.selection-mode button.suggested-action:disabled {
@@ -1748,7 +1699,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #f1f1f1);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0.9);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:backdrop,
         headerbar.selection-mode button.suggested-action:backdrop {
@@ -1757,7 +1708,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #e8e8e7);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
         .selection-mode.titlebar:not(headerbar) button.suggested-action:backdrop:disabled,
         headerbar.selection-mode button.suggested-action:backdrop:disabled {
@@ -1766,7 +1717,7 @@ headerbar {
           background-image: linear-gradient(to bottom, #f1f1f1);
           text-shadow: none;
           -gtk-icon-shadow: none;
-          box-shadow: inset 0 1px rgba(255, 255, 255, 0), 0 1px rgba(146, 188, 232, 0);
+          box-shadow: inset 0 1px rgba(255, 255, 255, 0);
           border-color: #184472; }
     .selection-mode.titlebar:not(headerbar) .selection-menu, .selection-mode.titlebar:not(headerbar) .selection-menu:backdrop,
     headerbar.selection-mode .selection-menu,
@@ -3365,105 +3316,16 @@ row.activatable:selected:backdrop {
   background-color: #4a90d9; }
 
 row:selected button {
-  color: #2e3436;
-  outline-color: rgba(46, 52, 54, 0.3);
-  border-color: #9d9d99;
-  background-image: linear-gradient(to bottom, #e8e8e7, #dededd 60%, #cfcfcd);
-  text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-  -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.8);
   border-color: #184472; }
-  row:selected button.flat, row:selected notebook > header > tabs > arrow, row:selected button.sidebar-button, row:selected headerbar button.titlebutton, headerbar row:selected button.titlebutton,
-  row:selected .titlebar button.titlebutton,
-  .titlebar row:selected button.titlebutton {
-    border-color: transparent;
-    background-color: transparent;
-    background-image: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    color: #ffffff; }
-  row:selected button:hover {
-    color: #2e3436;
-    outline-color: rgba(46, 52, 54, 0.3);
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #f7f7f7, #e8e8e7 60%, #dededd);
-    text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    box-shadow: inset 0 1px white;
-    border-color: #184472; }
-  row:selected button:active, row:selected button:checked {
-    color: #2e3436;
-    outline-color: rgba(46, 52, 54, 0.3);
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #c8c8c5, #dcdcda);
-    text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6);
-    border-color: #184472; }
-  row:selected button:backdrop, row:selected button.flat:backdrop, row:selected notebook > header > tabs > arrow:backdrop, row:selected button.sidebar-button:backdrop, row:selected headerbar button.titlebutton:backdrop, headerbar row:selected button.titlebutton:backdrop,
-  row:selected .titlebar button.titlebutton:backdrop,
-  .titlebar row:selected button.titlebutton:backdrop {
-    color: #8b8e8f;
-    border-color: #a5a5a1;
-    background-image: linear-gradient(to bottom, #e8e8e7);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    border-color: #184472; }
-    row:selected button:backdrop:active, row:selected button:backdrop:checked, row:selected button.flat:backdrop:active, row:selected notebook > header > tabs > arrow:backdrop:active, row:selected button.sidebar-button:backdrop:active, row:selected headerbar button.titlebutton:backdrop:active, headerbar row:selected button.titlebutton:backdrop:active,
-    row:selected .titlebar button.titlebutton:backdrop:active,
-    .titlebar row:selected button.titlebutton:backdrop:active, row:selected button.flat:backdrop:checked, row:selected notebook > header > tabs > arrow:backdrop:checked, row:selected button.sidebar-button:backdrop:checked, row:selected headerbar button.titlebutton:backdrop:checked, headerbar row:selected button.titlebutton:backdrop:checked,
-    row:selected .titlebar button.titlebutton:backdrop:checked,
-    .titlebar row:selected button.titlebutton:backdrop:checked {
-      color: #8b8e8f;
-      border-color: #a5a5a1;
-      background-image: linear-gradient(to bottom, #d1d1cf);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-      border-color: #184472; }
-    row:selected button:backdrop:disabled, row:selected button.flat:backdrop:disabled, row:selected notebook > header > tabs > arrow:backdrop:disabled, row:selected button.sidebar-button:backdrop:disabled, row:selected headerbar button.titlebutton:backdrop:disabled, headerbar row:selected button.titlebutton:backdrop:disabled,
-    row:selected .titlebar button.titlebutton:backdrop:disabled,
-    .titlebar row:selected button.titlebutton:backdrop:disabled {
-      color: #c3c3c0;
-      border-color: #a5a5a1;
-      background-image: linear-gradient(to bottom, #f1f1f1);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-      border-color: #184472; }
-      row:selected button:backdrop:disabled:active, row:selected button:backdrop:disabled:checked, row:selected button.flat:backdrop:disabled:active, row:selected notebook > header > tabs > arrow:backdrop:disabled:active, row:selected button.sidebar-button:backdrop:disabled:active, row:selected headerbar button.titlebutton:backdrop:disabled:active, headerbar row:selected button.titlebutton:backdrop:disabled:active,
-      row:selected .titlebar button.titlebutton:backdrop:disabled:active,
-      .titlebar row:selected button.titlebutton:backdrop:disabled:active, row:selected button.flat:backdrop:disabled:checked, row:selected notebook > header > tabs > arrow:backdrop:disabled:checked, row:selected button.sidebar-button:backdrop:disabled:checked, row:selected headerbar button.titlebutton:backdrop:disabled:checked, headerbar row:selected button.titlebutton:backdrop:disabled:checked,
-      row:selected .titlebar button.titlebutton:backdrop:disabled:checked,
-      .titlebar row:selected button.titlebutton:backdrop:disabled:checked {
-        color: #c3c3c0;
-        border-color: #a5a5a1;
-        background-image: linear-gradient(to bottom, #e4e4e4);
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-        border-color: #184472; }
-  row:selected button.flat:backdrop, row:selected notebook > header > tabs > arrow:backdrop, row:selected button.sidebar-button:backdrop, row:selected headerbar button.titlebutton:backdrop, headerbar row:selected button.titlebutton:backdrop,
-  row:selected .titlebar button.titlebutton:backdrop,
-  .titlebar row:selected button.titlebutton:backdrop {
-    border-color: transparent;
-    background-color: transparent;
-    background-image: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    color: white; }
-  row:selected button:disabled {
-    color: #8b8e8f;
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #f1f1f1);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0);
-    border-color: #184472; }
-    row:selected button:disabled:active, row:selected button:disabled:checked {
-      color: #8b8e8f;
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #e9e9e8, #f1f1f1);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
+  row:selected button.flat:not(:active):not(:checked):not(:hover):not(disabled), row:selected notebook > header > tabs > arrow:not(:active):not(:checked):not(:hover):not(disabled), row:selected button.sidebar-button:not(:active):not(:checked):not(:hover):not(disabled), row:selected headerbar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled), headerbar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled),
+  row:selected .titlebar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled),
+  .titlebar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled) {
+    color: #ffffff;
+    border-color: transparent; }
+    row:selected button.flat:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected notebook > header > tabs > arrow:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected button.sidebar-button:not(:active):not(:checked):not(:hover):not(disabled):backdrop, row:selected headerbar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop, headerbar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop,
+    row:selected .titlebar button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop,
+    .titlebar row:selected button.titlebutton:not(:active):not(:checked):not(:hover):not(disabled):backdrop {
+      color: white; }
 
 row {
   transition: all 150ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
@@ -3547,151 +3409,16 @@ messagedialog.csd.background {
 messagedialog.csd .dialog-action-area button {
   padding: 10px 14px;
   border-radius: 0;
-  color: #2e3436;
-  outline-color: rgba(46, 52, 54, 0.3);
-  border-color: #9d9d99;
-  background-image: linear-gradient(to bottom, #e8e8e7, #dededd 60%, #cfcfcd);
-  text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-  -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-  box-shadow: inset 0 1px rgba(255, 255, 255, 0.8); }
-  messagedialog.csd .dialog-action-area button:hover {
-    color: #2e3436;
-    outline-color: rgba(46, 52, 54, 0.3);
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #f7f7f7, #e8e8e7 60%, #dededd);
-    text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    box-shadow: inset 0 1px white; }
-  messagedialog.csd .dialog-action-area button:active {
-    color: #2e3436;
-    outline-color: rgba(46, 52, 54, 0.3);
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #c8c8c5, #dcdcda);
-    text-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    -gtk-icon-shadow: 0 1px rgba(255, 255, 255, 0.76923);
-    box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-  messagedialog.csd .dialog-action-area button:disabled {
-    color: #8b8e8f;
-    border-color: #9d9d99;
-    background-image: linear-gradient(to bottom, #f1f1f1);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button:backdrop {
-    color: #8b8e8f;
-    border-color: #a5a5a1;
-    background-image: linear-gradient(to bottom, #e8e8e7);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button:backdrop:disabled {
-    color: #c3c3c0;
-    border-color: #a5a5a1;
-    background-image: linear-gradient(to bottom, #f1f1f1);
-    text-shadow: none;
-    -gtk-icon-shadow: none;
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button.suggested-action {
-    color: white;
-    outline-color: rgba(255, 255, 255, 0.3);
-    border-color: #1c5187;
-    background-image: linear-gradient(to bottom, #4a90d9, #3986d5 60%, #2a76c6);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.54353);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.54353);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
-    messagedialog.csd .dialog-action-area button.suggested-action:hover {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #1c5187;
-      background-image: linear-gradient(to bottom, #63a0de, #4a90d9 60%, #3986d5);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.49553);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.49553);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
-    messagedialog.csd .dialog-action-area button.suggested-action:active {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #1c5187;
-      background-image: linear-gradient(to bottom, #276fba, #3583d5);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.62353);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.62353);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    messagedialog.csd .dialog-action-area button.suggested-action:backdrop {
-      color: #dbe9f7;
-      border-color: #4a90d9;
-      background-image: linear-gradient(to bottom, #4a90d9);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      messagedialog.csd .dialog-action-area button.suggested-action:backdrop:disabled {
-        color: #c3c3c0;
-        border-color: #a5a5a1;
-        background-image: linear-gradient(to bottom, #f1f1f1);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    messagedialog.csd .dialog-action-area button.suggested-action:disabled {
-      color: #8b8e8f;
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #f1f1f1);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-  messagedialog.csd .dialog-action-area button.destructive-action {
-    color: white;
-    outline-color: rgba(255, 255, 255, 0.3);
-    border-color: #8e0b0b;
-    background-image: linear-gradient(to bottom, #ef2929, #ee1616 60%, #d51010);
-    text-shadow: 0 -1px rgba(0, 0, 0, 0.56078);
-    -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.56078);
-    box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
-    messagedialog.csd .dialog-action-area button.destructive-action:hover {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #8e0b0b;
-      background-image: linear-gradient(to bottom, #f14545, #ef2929 60%, #ee1616);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.51278);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.51278);
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0.4); }
-    messagedialog.csd .dialog-action-area button.destructive-action:active {
-      color: white;
-      outline-color: rgba(255, 255, 255, 0.3);
-      border-color: #8e0b0b;
-      background-image: linear-gradient(to bottom, #c70f0f, #ed1212);
-      text-shadow: 0 -1px rgba(0, 0, 0, 0.64078);
-      -gtk-icon-shadow: 0 -1px rgba(0, 0, 0, 0.64078);
-      box-shadow: inset 0 2px 1px -2px rgba(0, 0, 0, 0.6); }
-    messagedialog.csd .dialog-action-area button.destructive-action:backdrop {
-      color: #fcd4d4;
-      border-color: #ef2929;
-      background-image: linear-gradient(to bottom, #ef2929);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-      messagedialog.csd .dialog-action-area button.destructive-action:backdrop:disabled {
-        color: #c3c3c0;
-        border-color: #a5a5a1;
-        background-image: linear-gradient(to bottom, #f1f1f1);
-        text-shadow: none;
-        -gtk-icon-shadow: none;
-        box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-    messagedialog.csd .dialog-action-area button.destructive-action:disabled {
-      color: #8b8e8f;
-      border-color: #9d9d99;
-      background-image: linear-gradient(to bottom, #f1f1f1);
-      text-shadow: none;
-      -gtk-icon-shadow: none;
-      box-shadow: inset 0 1px rgba(255, 255, 255, 0); }
-messagedialog.csd .dialog-action-area button, messagedialog.csd .dialog-action-area button:hover, messagedialog.csd .dialog-action-area button:active, messagedialog.csd .dialog-action-area button:disabled, messagedialog.csd .dialog-action-area button:backdrop, messagedialog.csd .dialog-action-area button:backdrop:disabled, messagedialog.csd .dialog-action-area button.suggested-action, messagedialog.csd .dialog-action-area button.suggested-action:hover, messagedialog.csd .dialog-action-area button.suggested-action:active, messagedialog.csd .dialog-action-area button.suggested-action:backdrop, messagedialog.csd .dialog-action-area button.suggested-action:backdrop:disabled, messagedialog.csd .dialog-action-area button.suggested-action:disabled, messagedialog.csd .dialog-action-area button.destructive-action, messagedialog.csd .dialog-action-area button.destructive-action:hover, messagedialog.csd .dialog-action-area button.destructive-action:active, messagedialog.csd .dialog-action-area button.destructive-action:backdrop, messagedialog.csd .dialog-action-area button.destructive-action:backdrop:disabled, messagedialog.csd .dialog-action-area button.destructive-action:disabled {
   border-left-style: solid;
   border-right-style: none;
   border-bottom-style: none; }
-messagedialog.csd .dialog-action-area button:last-child {
-  border-bottom-right-radius: 7px;
-  -gtk-outline-bottom-right-radius: 5px; }
-messagedialog.csd .dialog-action-area button:first-child {
-  border-left-style: none;
-  border-bottom-left-radius: 7px;
-  -gtk-outline-bottom-left-radius: 5px; }
+  messagedialog.csd .dialog-action-area button:first-child {
+    border-left-style: none;
+    border-bottom-left-radius: 7px;
+    -gtk-outline-bottom-left-radius: 5px; }
+  messagedialog.csd .dialog-action-area button:last-child {
+    border-bottom-right-radius: 7px;
+    -gtk-outline-bottom-right-radius: 5px; }
 
 filechooser .dialog-action-box {
   border-top: 1px solid #9d9d99; }