[gtk/wip/jimmac/tiled-dropshadow-workaround-for-a-workaround] Adwaita: prevent mutter from crashing

[Jakub Steiner <jimmac src gnome org>]

commit 1f22a898433687b59315e14b4c0a9d48b6753007
Author: Jakub Steiner <jimmac gmail com>
Date:   Mon Mar 1 16:16:33 2021 +0100

    Adwaita: prevent mutter from crashing
    
    See https://gitlab.gnome.org/GNOME/mutter/-/issues/1668

 gtk/theme/Adwaita/_common.scss                   | 6 +++---
 gtk/theme/Adwaita/gtk-contained-dark.css         | 2 +-
 gtk/theme/Adwaita/gtk-contained.css              | 2 +-
 gtk/theme/HighContrast/gtk-contained-inverse.css | 2 +-
 gtk/theme/HighContrast/gtk-contained.css         | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index b2eb2fc47d..176d08a924 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -4590,9 +4590,9 @@ decoration {
     box-shadow: 0 0 0 1px $_wm_border_backdrop,
                 0 0 0 20px transparent; //transparent control workaround -- #3670
 
-    &:backdrop { box-shadow: 0 0 0 1px $_wm_border_backdrop,
-                             0 0 0 20px transparent; // #3670
-    }
+    &:backdrop { box-shadow: 0 0 0 1px $_wm_border_backdrop; } // no transparent shadow for
+                                                               // backdrop -- #3670 &
+                                                               // mutter/-/issues/1668
    }
 
   .popup & { box-shadow: none; }
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 1951f82619..1d8fb44fbe 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -1842,7 +1842,7 @@ decoration:backdrop { box-shadow: 0 3px 9px 1px transparent, 0 2px 6px 2px rgba(
 
 .tiled decoration, .tiled-top decoration, .tiled-right decoration, .tiled-bottom decoration, .tiled-left 
decoration { border-radius: 0; box-shadow: 0 0 0 1px rgba(27, 27, 27, 0.9), 0 0 0 20px transparent; }
 
-.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(27, 27, 27, 0.9), 0 0 0 
20px transparent; }
+.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(27, 27, 27, 0.9); }
 
 .popup decoration { box-shadow: none; }
 
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 34ed56397a..79a0ec72a9 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -1858,7 +1858,7 @@ decoration:backdrop { box-shadow: 0 3px 9px 1px transparent, 0 2px 6px 2px rgba(
 
 .tiled decoration, .tiled-top decoration, .tiled-right decoration, .tiled-bottom decoration, .tiled-left 
decoration { border-radius: 0; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18), 0 0 0 20px transparent; }
 
-.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18), 0 0 0 20px 
transparent; }
+.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18); }
 
 .popup decoration { box-shadow: none; }
 
diff --git a/gtk/theme/HighContrast/gtk-contained-inverse.css 
b/gtk/theme/HighContrast/gtk-contained-inverse.css
index bf27138929..6351d22655 100644
--- a/gtk/theme/HighContrast/gtk-contained-inverse.css
+++ b/gtk/theme/HighContrast/gtk-contained-inverse.css
@@ -1922,7 +1922,7 @@ decoration:backdrop { box-shadow: 0 3px 9px 1px transparent, 0 2px 6px 2px rgba(
 
 .tiled decoration, .tiled-top decoration, .tiled-right decoration, .tiled-bottom decoration, .tiled-left 
decoration { border-radius: 0; box-shadow: 0 0 0 1px rgba(104, 104, 104, 0.9), 0 0 0 20px transparent; }
 
-.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(104, 104, 104, 0.9), 0 0 0 
20px transparent; }
+.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(104, 104, 104, 0.9); }
 
 .popup decoration { box-shadow: none; }
 
diff --git a/gtk/theme/HighContrast/gtk-contained.css b/gtk/theme/HighContrast/gtk-contained.css
index 8592ee8d41..cbf2ece19e 100644
--- a/gtk/theme/HighContrast/gtk-contained.css
+++ b/gtk/theme/HighContrast/gtk-contained.css
@@ -1938,7 +1938,7 @@ decoration:backdrop { box-shadow: 0 3px 9px 1px transparent, 0 2px 6px 2px rgba(
 
 .tiled decoration, .tiled-top decoration, .tiled-right decoration, .tiled-bottom decoration, .tiled-left 
decoration { border-radius: 0; box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18), 0 0 0 20px transparent; }
 
-.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18), 0 0 0 20px 
transparent; }
+.tiled decoration:backdrop, .tiled-top decoration:backdrop, .tiled-right decoration:backdrop, .tiled-bottom 
decoration:backdrop, .tiled-left decoration:backdrop { box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.18); }
 
 .popup decoration { box-shadow: none; }