[joeyjojo]

I'm not sure it is particularly desirable to clone Flash's vector drawing tools. They were certainly nice to use but also pretty glitchy as you say. Functionality like vector shape tweening, while nice to have, is also not that important IMO. If the tools optimised more for artists and animators, they would mostly be using graphics tablets for more illustrative graphics. Vector tools for UI could perhaps be more along the lines of what Sketch offers.

I reckon taking something like Godot's vector draw tools, and combining that with a Flash timeline/library, with a Javascript runtime, and you would win over all those animators that keep saying "why can't they just re-make Flash".