diff --git a/src/components/Toolbar.scss b/src/components/Toolbar.scss
index ca522ffce..b2aaeae39 100644
--- a/src/components/Toolbar.scss
+++ b/src/components/Toolbar.scss
@@ -48,6 +48,7 @@
 
     .ToolIcon__hidden {
       box-shadow: none !important;
+      background-color: transparent !important;
     }
 
     .ToolIcon.ToolIcon__lock {