diff --git a/rtdata/themes/TooWaBlue-GTK3-20_.css b/rtdata/themes/TooWaBlue-GTK3-20_.css
index c007a92be..41252c5ed 100644
--- a/rtdata/themes/TooWaBlue-GTK3-20_.css
+++ b/rtdata/themes/TooWaBlue-GTK3-20_.css
@@ -80,7 +80,6 @@
     min-height: 0;
     padding: 0;
     margin: 0;
-    opacity: 1;
     border: none;
     box-shadow: none;
 }