/**
  * Updates styles files of all styles.
  */
 protected function cleanup()
 {
     // get all styles
     $styleList = new StyleList();
     $styleList->sqlLimit = 0;
     $styleList->readObjects();
     foreach ($styleList->getObjects() as $style) {
         $styleEditor = new StyleEditor($style);
         $styleEditor->writeStyleFile();
     }
 }