Allow players to switch between new and old UI

While the new UI might be better for newer players, I don't really like the new greyer version, and I like the old buttons/flask layout/amber theme much better. Therefore, I would appreciate it if you could put a dropdown in the options menu that allows players to choose between which UI is displayed. I do not think this change would take much, and I am sure a great many players would appreciate it.
Also, would appreciate it if the new green shop button could be moved to below the new menu button instead of where it is with the new UI like someone suggested on reddit, it looks much less hideous there.