diff --git a/src/public/stylesheets/theme-next.css b/src/public/stylesheets/theme-next.css
index 2c23997c2..611951cd7 100644
--- a/src/public/stylesheets/theme-next.css
+++ b/src/public/stylesheets/theme-next.css
@@ -422,12 +422,16 @@ body.background-effects #root-widget {
     --launcher-pane-horizontal-border-color: rgba(0, 0, 0, 0.5);
 }
 
+body.background-effects.layout-vertical {
+    --left-pane-background-color: transparent;
+}
+
 body.background-effects #launcher-pane .launcher-button {
     background-color: transparent;
 }
 
-body.layout-vertical #rest-pane,
-body.layout-horizontal.background-effects #horizontal-main-container {
+body.background-effects.layout-vertical #rest-pane,
+body.background-effects.layout-horizontal #horizontal-main-container {
     background-color: var(--root-background);
 }
 /* #endregion */