[Crespyl]

We do actually have JavaFX now, which has some has some weird historical baggage from back when it was supposed to be its own platform, but is actually pretty nice to work with from a UI standpoint.

It has a XML/CSS based way to describe the UI/layout and then lets you link that to your code with annotations. It's not perfect, but it's a lot more pleasant to work with than the likes of SWT.