diff --git a/static/css/theme-neon.css b/static/css/theme-neon.css
index ee47d9c9f9..5e4e05dd8e 100644
--- a/static/css/theme-neon.css
+++ b/static/css/theme-neon.css
@@ -32,8 +32,8 @@
     --MENU-HOME-LINK-color: #323232; /* Color of the home button text */
     --MENU-HOME-LINK-HOVER-color: #5e5e5e; /* Color of the hovered home button text */
 
-    --MENU-HEADER-BG-color: transparent; /* Background color of menu header */
-    --MENU-HEADER-BORDER-color: transparent; /*Color of menu header border */
+    --MENU-HEADER-BG-color: rgba( 0, 0, 0, 0 ); /* Background color of menu header */
+    --MENU-HEADER-BORDER-color: rgba( 0, 0, 0, 0 ); /*Color of menu header border */
 
     --MENU-SEARCH-color: #e0e0e0; /* Color of search field text */
     --MENU-SEARCH-BG-color: #323232; /* Search field background color (by default borders + icons) */