diff -r db4de4f37b65 -r 67bf19c50fcc www/jqwidgets/styles/jqx.arctic.css
--- a/www/jqwidgets/styles/jqx.arctic.css	Sun Apr 11 10:53:20 2021 +0200
+++ b/www/jqwidgets/styles/jqx.arctic.css	Mon Apr 12 16:03:38 2021 +0200
@@ -405,7 +405,7 @@
 }
 
 .jqx-tree-item-arrow-collapse-rtl-arctic, .jqx-tree-item-arrow-collapse-hover-rtl-arctic {
-    background-image: url(images/icon-left.png);
+    background-image: url(./images/icon-left.png);
 }
 
 .jqx-menu-item-arrow-left-selected-arctic {