diff --git a/data/theme/gnome-shell-high-contrast.css b/data/theme/gnome-shell-high-contrast.css
index 292d0bca4..140785d48 100644
--- a/data/theme/gnome-shell-high-contrast.css
+++ b/data/theme/gnome-shell-high-contrast.css
@@ -859,9 +859,12 @@ StScrollBar {
 .media-message-cover-icon {
   icon-size: 32px; }
   .media-message-cover-icon.fallback {
+    color: #1a1a1a;
+    background-color: #000;
+    border: 2px solid #000;
+    border-radius: 2px;
     icon-size: 16px;
-    padding: 8px;
-    border: 1px solid black; }
+    padding: 8px; }
 
 .system-switch-user-submenu-icon.user-icon {
   icon-size: 20px;
diff --git a/data/theme/gnome-shell-sass b/data/theme/gnome-shell-sass
index 7e13533ab..d8194e25b 160000
--- a/data/theme/gnome-shell-sass
+++ b/data/theme/gnome-shell-sass
@@ -1 +1 @@
-Subproject commit 7e13533ab5280fd1370b3e9a7b8ba57a049cfb29
+Subproject commit d8194e25bd9bb67399e90d6a7e10fc559e58114d
diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index d3955e841..92529a6f3 100644
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -859,9 +859,12 @@ StScrollBar {
 .media-message-cover-icon {
   icon-size: 32px; }
   .media-message-cover-icon.fallback {
+    color: #515a5a;
+    background-color: #393f3f;
+    border: 2px solid #393f3f;
+    border-radius: 2px;
     icon-size: 16px;
-    padding: 8px;
-    border: 1px solid #1c1f1f; }
+    padding: 8px; }
 
 .system-switch-user-submenu-icon.user-icon {
   icon-size: 20px;