Yours sounds quite a lot more advanced than mine. Mine is a drop in replacement for ComboBox that has the core functionality (but isn’t completely feature equivalent) and works in a JME friendly way. Sounds like yours is a general fix that makes all JavaFx things that use a floating window work which is obviously better.
In any case I’m not in a rush, as I have a reflection based ComboBoxJME; works but is of course fragile
Also; Arctic circle!? That’s awesome!