View file application/modules/Core/views/scripts/admin-themes/upgrade-color-variant.tpl

<?php
/**
 * SocialEngine
 *
 * @category   Application_Core
 * @package    Core
 * @copyright  Copyright 2006-2017 Webligo Developments
 * @license    http://www.socialengine.com/license/
 * @version    $Id: clone.tpl 9747 2017-02-01 02:08:08Z john $
 * @author     Steve
 */
?>

<?php echo $this->form->render($this) ?>
<script type="application/javascript">
  scriptJquery('.core_admin_main_layout').parent().addClass('active');
  scriptJquery('.core_admin_main_layout_themes').addClass('active');
</script>