Updated gallery for chapter 4.
Added one big scrolly image for a certain prominent backside (show in-game and gallery).
Added an image to the main menu background rotation for completing a chapter 4 event.
Not all gallery triggers will have been set correctly in your playthrough. Run through chapter 4 again to unlock them.
Android users might need to uninstall the beta before they can install the official release (and lose their saves in the process). Sorry about that.