[epiphany/wip/exalm/dark: 3/3] about.css: Sync app icon drop shadow with Adwaita

[Alexander Mikhaylenko <alexm src gnome org>]

commit c85139e0217c7332cbaf28afc3cb8ea6716f34ff
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Sep 26 21:17:09 2019 +0500

    about.css: Sync app icon drop shadow with Adwaita

 src/resources/about.css | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/resources/about.css b/src/resources/about.css
index 83f753706..54ed39dff 100644
--- a/src/resources/about.css
+++ b/src/resources/about.css
@@ -90,8 +90,11 @@ h1 {
 }
 
 #about-icon {
-    filter: drop-shadow(0 2px 12px rgba(0,0,0,0.1))
-            drop-shadow(0 1px 2px rgba(0,0,0,0.5));
+    filter: drop-shadow(0 1px 12px rgba(0, 0, 0, 0.05))
+            drop-shadow(0 -1px rgba(0, 0, 0, 0.05))
+            drop-shadow(1px 0 rgba(0, 0, 0, 0.1))
+            drop-shadow(0 1px rgba(0, 0, 0, 0.3))
+            drop-shadow(-1px 0 rgba(0, 0, 0, 0.1));
 }
 
 /* about:plugins */