diff --git a/src/public/stylesheets/theme-next/shell.css b/src/public/stylesheets/theme-next/shell.css
index 5b5a97f42..da400f113 100644
--- a/src/public/stylesheets/theme-next/shell.css
+++ b/src/public/stylesheets/theme-next/shell.css
@@ -1563,6 +1563,11 @@ body .calendar-dropdown-widget .calendar-body a:hover {
 
 /* Help */
 
+.help-dialog .modal-content {
+    --modal-background-color: #fffc;
+    backdrop-filter: blur(10px);
+}
+
 .help-dialog .help-cards {
     display: block;
     columns: 3;