code: private String getBigImageScaleParam() {
  
          return IMAGE_SCALE_PARAM
              + ",w:"
              + I_CmsLayoutBundle.INSTANCE.galleryResultItemCss().bigImageWidth()
              + ",h:"
              + I_CmsLayoutBundle.INSTANCE.galleryResultItemCss().bigImageHeight();
      }
docs: Returns the scale parameter for big thumbnail images.<p>
  
  @return the scale parameter