Slideshow widgets

I'm experimenting with several of the slideshow widgets offered in the online catalog. My client is want full width slideshows and I found that the one I used (can't remember which) lowered the detail quality of the photos once uploaded into the slideshow widget. So, I'm loading all the slideshow widgets up to check clarity, however, several look great but they don't seem to support the stretch to "full width" option. Is there a way to know which slideshows do and which do not support that when viewing the online catalog. I'm frustrated with the online catalog. It would be great if it gave a brief description of the widget effects without having to upload it to find these out. Very time consuming.