Other than AWT, Swing, SWT (Java) – are there any good open source Java or C# UI libraries around? In particular, libs intended or at least usable for strategy gaming dev? (The visual appearance of the UI would need to be highly dynamic and easy to re-skin obviously.) Engines or “frameworks” which include this functionality are valid answers as well (of course I even more doubt that those exist).
As far as I can tell – there’s not a single thing like this out there. Anyone able to prove me wrong?
Not sure about Java, but for C# I would look at either XNA or Unity to start out with.