Probably not even possible, but figured I'd suggest it anyways.. I would love to be able to use the old UI instead of the new one. I'm glad we're on a newer client with more capabilities, but this UI is just so ugly. I'd also like the font to be switched back to the old one which would help a lot I think. In general the bland menus/info box in the top left corner combined with the new text for the chat and character names make the game a lot less pleasing to look at. This was one of the main draws of the game imo, the cute aesthetic. The new UI and font subtract from that to me.
Anyway, I'd kill for an option somewhere, anywhere to switch back to like a "legacy" UI and have the old look instead.