Fixed issue #13497: Editor sreen loads without css when creating/opda…

…ting custom css

application/controllers/admin/themes.php

@@ -657,7 +657,7 @@ public function templatesavechanges()
 
                         // If the file is an asset file, we refresh asset number
                         if (in_array($relativePathEditfile, $cssfiles) || in_array($relativePathEditfile, $jsfiles)){
-                            SettingGlobal::increaseAssetsversionnumber();
+                            SettingGlobal::increaseCustomAssetsversionnumber();
                         }
 
                         fclose($handle);