diff --git a/gtk-common/common.css b/gtk-common/common.css
index 84d194b..cc0e867 100644
--- a/gtk-common/common.css
+++ b/gtk-common/common.css
@@ -2858,7 +2858,7 @@ notebook > header {
   padding: 0px;
   border-color: @borders;
   border-width: 0px;
-  background-color: @borders; /*@window_bg;*/ }
+  background-color: mix(@window_bg, @text_widget_bg, 0.5); }
   /*notebook > header:backdrop {
     border-color: @unfocused_borders;
     background-color: @window_bg; }*/