public function getPromotionIconUrl()
    {
        if (($sIcon = $this->oxcategories__oxpromoicon->value)) {
            $sSize = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('sCatPromotionsize');

            return \OxidEsales\Eshop\Core\Registry::getPictureHandler()->getPicUrl("category/promo_icon/", $sIcon, $sSize);
        }
    }