I get full-screen using the Plex app on Android but a lot (>50%) black space when looking at my photo collection using a web browser under Windows(7). This is a pity since it gives the impression of an unfinished piece of development. This is somewhat bizzare since there is a full-screen icon/button bottom right of the picture, but it doesn’t function properly. When I questioned this in fora I received messages to say it would be worth requesting as a feature.