Adwaita: don't backdrop labels

- instead of overriding :backdrop for sidebars, continue pursuing
  not to backdrop anything but headerbar items and buttons.

Fixes https://gitlab.gnome.org/GNOME/gtk/-/issues/3377

diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 09b43d09dff71b3a840558f8654b728a71f35ae3..ad054f4a17ae25bb77c96bf1472db880acd7cc40 100644 (file)
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -4088,12 +4088,6 @@ tooltip.csd {
     @at-root %selected_items_disabled,
     &:disabled { color: mix($selected_fg_color, $selected_bg_color, 50%); }
 
-    @at-root %selected_items_backdrop,
-    &:backdrop {
-      color: $backdrop_selected_fg_color;
-
-      &:disabled { color: mix($backdrop_selected_fg_color, $selected_bg_color, 30%); }
-    }
   }
 }