[gnome-shell-sass] theme: app icon helper tweaks

[Florian Müllner <fmuellner src gnome org>]

commit 478d47a177b4a55f4805e737436b6ae427238b5c
Author: Jakub Steiner <jimmac gmail com>
Date:   Thu Jul 18 05:03:08 2019 +0200

    theme: app icon helper tweaks
    
    Shell cannot composite multiple shadows, simplify to only use one.
    
    https://gitlab.gnome.org/GNOME/gnome-shell-extensions/issues/168

 _common.scss | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/_common.scss b/_common.scss
index fb66437..dd71600 100644
--- a/_common.scss
+++ b/_common.scss
@@ -624,16 +624,12 @@ StScrollBar {
  *************/
 /* Outline for low res icons */
 .lowres-icon {
-    icon-shadow: 0 -1px rgba(0,0,0,0.05),
-      1px 0 rgba(0,0,0,0.1),
-      0 1px rgba(0,0,0,0.3),
-      -1px 0 rgba(0,0,0,0.1);
+    icon-shadow: 0 1px 2px rgba(0,0,0,0.3);
 }
 
 /* Drapshadow for large icons */
 .icon-dropshadow {
-  icon-shadow: 0 2px 12px rgba(0,0,0,0.1),
-               0 1px 2px rgba(0,0,0,0.5);
+  icon-shadow: 0 1px 2px rgba(0,0,0,0.4);
 }
 
 /* OSD */