diff --git a/ion-theme.css b/ion-theme.css
index c66557c..0507f39 100644
--- a/ion-theme.css
+++ b/ion-theme.css
@@ -361,3 +361,8 @@
     display: none;
 }
 
+/* popup */
+.standardSidebarView__23e6b {
+    background: rgb(0 0 0 / 90%);
+}
+