public static function mobileThemeList()
 {
     $list = EnmasseHelper::themeList();
     $webThemeList = EnmasseHelper::webThemeList();
     $returnList = array();
     $count = 0;
     for ($i = 0; $i < count($list); $i++) {
         if (!in_array($list[$i], $webThemeList)) {
             $returnList[$count] = $list[$i];
             $count += 1;
         }
     }
     return $returnList;
 }