/**
  * Prepare article icon callback.
  *
  * @return string
  */
 public function prepareNewsIconCallback()
 {
     $user = BackendUser::getInstance();
     return sprintf('system/themes/%s/images/%s', $user->backendTheme, Icons::getTableIcon('tl_article'));
 }
 /**
  * Get news archive table icon callback.
  *
  * @return string
  */
 public function getNewsArchiveIconCallback()
 {
     $user = BackendUser::getInstance();
     return sprintf('system/themes/%s/images/%s', $user->backendTheme, Icons::getTableIcon('tl_news_archive'));
 }