I looked at the demo(s) - particularly Modus and noted how the selection of the photo caused it to expand to a larger size. On my install it does but the image is not very much larger. I suspect it's showing me the original size. Question is, is there a plug-in or extension that will automatically expand the photo to full screen? Obviously I'd like it to be responsive.

Thanks in advance to all you expert users and I apologize for my ignorance ahead of time!

Piwigo version: 2.9