A rather simple theme with support for slimbox (like lighbox) and reflections by Nils K. Windisch. you have to edit the contact link and upload only images with the desired end result size (800px longest border = recommended). install instruction here.
Note: This theme seems not to be supported by its author anymore.
Please note: This theme has been abandoned either by the Zenphoto team or its original 3rd party developer but we provide it for archival purposes on our "unsuppported" GitHub repository "as is". We may sometimes roughly update it for the current Zenphoto release but cannot promise full compatibility (See the circle icon about the status).
It is not possible to download individual themes from the GitHub repository. You have to download the full repository (click on "Download ZIP") and sort out what you need yourself.