public function preprocess_panelizer_view_mode(&$vars, $entity, $element, $panelizer, $info)
 {
     parent::preprocess_panelizer_view_mode($vars, $entity, $element, $panelizer, $info);
     if (!empty($entity->promote)) {
         $vars['classes_array'][] = 'node-promoted';
     }
     if (!empty($entity->sticky)) {
         $vars['classes_array'][] = 'node-sticky';
     }
     if (empty($entity->status)) {
         $vars['classes_array'][] = 'node-unpublished';
     }
 }