It doesn't at a base; both render via Skia and have completely bespoke widget systems, not tied to AWT/Swing or the native platform. They could implement the Fl

It doesn't at a base; both render via Skia and have completely bespoke widget systems, not tied to AWT/Swing or the native platform. They could implement the Fleet widget system on top of Compose if they wanted to invest in the effort. Personally, having worked with multiplatform Compose, I very much appreciate it over the plain "widget objects with callbacks" approach.