Ticket #28669: 28669.diff

src/wp-admin/css/customize-controls.css

@@ -201 +201 @@
         left: 9px;
 }
 
+.rtl .control-panel-back:before {
+        content: "\f344";
+}
+
 .current-panel .control-panel-back {
         left: 0;
 }