We use the Big Picture theme for a class project, as it best suits our needs. However, the zoom function in the media viewer is limited to two modes (zoomed-in and zoomed-out). An incremental, slider type zoom, would be much more useful. Some searching has lead me to believe the lightGallery media viewer is in fact capable of that function (Settings - lightGallery), but the Big Picture theme seems to have disabled it. Is there a way to (re-)enable this function?