/**
  * get add styles in themes - text panel 
  */
 protected function getAdditionalStyles_themes()
 {
     $addStyles = "";
     $cssTitle = $this->getParam("slider_textpanel_css_title", self::TRIM);
     $cssTitle = UniteFunctionsUG::jsonToCss($cssTitle);
     if (!empty($cssTitle)) {
         $cssTitle = "[galleryid] .ug-textpanel-title{ {$cssTitle} }";
         $addStyles .= "\n" . $cssTitle;
     }
     //---- text panel description
     $cssDesc = $this->getParam("slider_textpanel_css_description", self::TRIM);
     $cssDesc = UniteFunctionsUG::jsonToCss($cssDesc);
     if (!empty($cssDesc)) {
         $cssDesc = "[galleryid] .ug-textpanel-description{ {$cssDesc} }";
         $addStyles .= "\n" . $cssDesc;
     }
     return $addStyles;
 }