Ok, but if I have 2 seperate .ui files, how would I declare them in the same class? All of my buttons, boxes, etc will still have the same object names, so I guess I don't really need to change the "core" of my program. Maybe, in the constructor, I should have an if() tag which should check QSettings if the app should load the new/old skin, and somehow load a different ui file based on that?

But I have a question. If I use the QUILoader class, is it slow? And does it support multiple inheritance? Thanks

Oh, and when are style sheets going to be supported on Qt/Mac?