GTK3 & GTK4 tweaks

- Recover thunar's root-warning banner
- Reduce size of thunar's root-warning banner
- Move panel-background color to _colors.scss
- Lighten gtk4 button's color to match gtk3
- Use lighter color for tabs

src/themes/Kali/sass/gtk3/_applications.scss

@@ -1,5 +1,3 @@
-$panel_bg : transparentize($bg_color, if($variant=='light', .1, .2));
-
 /* Nautilus */
 @define-color disk_space_unknown #383c4a;
 @define-color disk_space_used #{"" +$selected_bg_color};
@@ -86,7 +84,7 @@ filechooser,
     box-shadow: none;
     text-shadow: none;
     background: transparent;
-    color: if($variant=='light', darken($fg_color, 10%), $fg_color);
+    color: $panel_fg;
 
     $_highlight_bg_color: if($variant=='light', $bg_color, rgba(black, .2));
 
@@ -220,9 +218,6 @@ wnck-pager {
 }
 
 /* Thunar */
-// Hide root user warning
-.thunar .warning {
-  opacity: 0;
-  font-size: 0;
-  margin: -10px 0;
-}
+// Reduce height of root user warning
+.thunar .warning { margin: -7px 0; }
+

src/themes/Kali/sass/gtk3/_common-tweaks.scss

@@ -258,7 +258,6 @@ notebook {
 
           &:checked {
             @include button(normal);
-            background: $base_color;
 
             &:backdrop { @include button(backdrop); }
           }

src/themes/Kali/sass/gtk3/upstream/sync.sh

@@ -4,7 +4,7 @@ GREEN='\033[0;32m'
 YELLOW='\033[0;33m'
 RESET='\033[0m'
 
-VERSION=3.24.28
+VERSION=3.24.29
 
 echo
 printf " $YELLOW[ i ]$RESET Upstream version $VERSION\n"