diff --git a/src/app/style/vars.scss b/src/app/style/vars.scss
index 3c7ce77..05aeeea 100644
--- a/src/app/style/vars.scss
+++ b/src/app/style/vars.scss
@@ -15,6 +15,8 @@
 $border-color: lighten($background-color, 6%);
 $color-placeholder: darken($color-font, 14%);
 
+$panel-filled-bg: rgba(68,70,79,0.5);
+
 $color-primary: #0F83C9;
 $color-info: #56C0E0;
 $color-warning: #f7af3e;