diff --git a/src/sass/gtk/_common-3.0.scss b/src/sass/gtk/_common-3.0.scss
index e50143a1..d4acbd59 100644
--- a/src/sass/gtk/_common-3.0.scss
+++ b/src/sass/gtk/_common-3.0.scss
@@ -1311,6 +1311,11 @@ searchbar > revealer > box {
     padding: $space-size $space-size * 2;
     border-radius: $window-radius $window-radius 0 0;
     box-shadow: inset 0 1px highlight($titlebar);
+    background-color: $titlebar;
+
+    &:backdrop {
+      background-color: $titlebar-backdrop;
+    }
 
     .tiled &,
     .maximized &,
@@ -3648,7 +3653,6 @@ colorchooser .popover.osd {
 decoration {
   transition: $transition-shadow;
   border-radius: $window-radius;
-  // background-color: $background;
 
   @if $rimless == 'true' {
     box-shadow: $shadow-z16, 0 0 36px transparent;
diff --git a/src/sass/gtk/_common-4.0.scss b/src/sass/gtk/_common-4.0.scss
index 7c66d0a3..c888f498 100644
--- a/src/sass/gtk/_common-4.0.scss
+++ b/src/sass/gtk/_common-4.0.scss
@@ -1625,7 +1625,7 @@ headerbar {
     }
   }
 
-  popover.background { // reset popover
+  popover.background { // reset popovers
     button:not(.suggested-action):not(.destructive-action):not(.flat) {
       @extend %button-basic;
     }
@@ -1639,6 +1639,16 @@ headerbar {
     }
 
     entry { @extend %entry-basic; }
+
+    entry,
+    spinbutton,
+    button,
+    menubutton,
+    stackswitcher,
+    separator:not(.sidebar) {
+      margin-top: 0;
+      margin-bottom: 0;
+    }
   }
 
   separator:not(.sidebar) {
@@ -2490,8 +2500,8 @@ tabbar {
     }
 
     > separator {
-      margin-top: 9px;
-      margin-bottom: 9px;
+      margin: 9px 0;
+      min-width: 1px;
       transition: opacity 150ms ease-in-out;
 
       &.hidden {
@@ -2501,6 +2511,7 @@ tabbar {
 
     > tabboxchild {
       margin: 0 -3px;
+      padding: 0;
 
       > tab {
         @extend %tabs_tab;
diff --git a/src/sass/gtk/apps/_gnome-4.0.scss b/src/sass/gtk/apps/_gnome-4.0.scss
index 1322ef43..fbf212ae 100644
--- a/src/sass/gtk/apps/_gnome-4.0.scss
+++ b/src/sass/gtk/apps/_gnome-4.0.scss
@@ -1127,11 +1127,10 @@ window > contents > leaflet { // Gnome control center
 // Gnome Weather
 //
 
-@define-color weather_temp_chart_fill_color: #{rgba(248, 228, 92, 0.5)};
-@define-color weather_temp_chart_stroke_color: #{rgba(246, 211, 45, 1.0)};
-
-@define-color weather_thermometer_warm_color: #{if($variant == 'light', $yellow-dark, $yellow-light)};
-@define-color weather_thermometer_cold_color: #{if($variant == 'light', $blue-dark, $blue-light)};
+@define-color weather_temp_chart_fill_color #{rgba($warning, 0.5)};
+@define-color weather_temp_chart_stroke_color #{darken($warning, 10%)};
+@define-color weather_thermometer_warm_color #{if($variant == 'light', $yellow-dark, $yellow-light)};
+@define-color weather_thermometer_cold_color #{if($variant == 'light', $blue-dark, $blue-light)};
 
 $weather_thermometer_high_color: $yellow-light;
 $weather_thermometer_low_color: $blue-light;
@@ -1484,11 +1483,3 @@ window.dialog {
     }
   }
 }
-
-window.aboutdialog {
-  stack scrolledwindow.frame > {
-    &, viewport.view {
-      border-radius: $window-radius - $space-size;
-    }
-  }
-}