diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index dda9176222..b2963a60a3 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -58,16 +58,15 @@ $ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  ***************/
 
 .background {
-    color: $fg_color;
-    background-color: $bg_color;
-}
+  color: $fg_color;
+  background-color: $bg_color;
 
-.background:backdrop {
+  &:backdrop {
     text-shadow: none;
     icon-shadow: none;
-
-    color: lighten($fg_color,10%);
+    color: $backdrop_fg_color;
     background-color: $backdrop_bg_color;
+  }
 }
 
 /*
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 6d439d55d4..eec8664925 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -32,12 +32,11 @@
 .background {
   color: #eeeeec;
   background-color: #393f3f; }
-
-.background:backdrop {
-  text-shadow: none;
-  icon-shadow: none;
-  color: white;
-  background-color: #393f3f; }
+  .background:backdrop {
+    text-shadow: none;
+    icon-shadow: none;
+    color: #939695;
+    background-color: #393f3f; }
 
 /*
    These wildcard seems unavoidable, need to investigate.
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 7394c74941..70d0a65354 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -32,12 +32,11 @@
 .background {
   color: #2e3436;
   background-color: #ededed; }
-
-.background:backdrop {
-  text-shadow: none;
-  icon-shadow: none;
-  color: #454f52;
-  background-color: #ededed; }
+  .background:backdrop {
+    text-shadow: none;
+    icon-shadow: none;
+    color: #8d9091;
+    background-color: #ededed; }
 
 /*
    These wildcard seems unavoidable, need to investigate.