A modern programming language that makes developers happier.

kotlinlang

Does it make sense to combine multiplatform (on jvm) with swing to create own composable components from scratch?

if swing has some component you can make sure of, it's much better than having to re-invent the wheel. the only issue is that you cannot share the code with other platforms.

what component do u need?

I do need a "what you see, is what you get" rich text editor.

Personally I think swing components are ugly, and I think it's much more worth it to create components for Jewel.

I think Jewels components are really beautiful, and it's in my opinion the prettiest cross-platform GUI out there.