RPG Maker MV! The paper doll system and menu changes are essentially coded by me. It's pretty hard for a beginner to use, I think! If you want to try to develop your own, I'm using the pictures function for a lot of it.
I just tried doing the same but only for full outfits, I've tried to add unique individual outfit parts but the logic gets very complicated very quickly, I'll stick with what I have for now but what about how you customize menus?
You can open up the default code for the game, and look at how it structures windows and scenes. Playing around with those will teach you what you need!
