theme: make toggled tbuttons in toolbars visible

- do what Alex does in libadwaita

Fixes https://gitlab.gnome.org/GNOME/gtk/-/issues/4264

diff --git a/gtk/theme/Default/_common.scss b/gtk/theme/Default/_common.scss
index dc9a9f6409d28c111fd38e0681346295eaaaff1c..73300c32b7243da10e6bf685a9026c70fdc6346b 100644 (file)
--- a/gtk/theme/Default/_common.scss
+++ b/gtk/theme/Default/_common.scss
@@ -888,13 +888,8 @@ modelbutton.flat arrow {
 
 .toolbar button {
   margin: 1px;
-  @extend %undecorated_button;
 
-  &:hover { @include button('hover'); }
-  &:active { @include button('active'); }
-  &:disabled { @include button('insensitive'); }
-  &:backdrop { @include button('backdrop'); }
-  &:backdrop:disabled { @include button('backdrop-insensitive'); }
+   @extend %button_basic_flat;
 }
 
 button.color {