Shaun_Max If anyone wants to port feathersui-starling from AS3 to Haxe, you have my blessing. I don't have time to be involved, though. Except maybe to give a little advice here and there.
For reference, there is an older version of feathersui-starling for Haxe available here, but it's very out of date: https://github.com/openfl/feathers
Instead, I'd say to keep an eye on the https://github.com/MatseFR/feathersui-starling project that @TeotiGraphix mentioned.
If I ever decide to officially support Starling again, it will probably be ported from the newer feathersui-openfl rather than translating feathersui-starling from AS3 to Haxe. As part of the OpenFL rewrite, I improved a number of APIs in Feathers UI, and I would want to keep those changes. I am not planning anything at this time, but who knows. Maybe I'll want to scratch that itch someday. I might also be convinced with offers of funding. 😉