Really cool project! It's nice to see someone putting effort into tooling for MTA. The community really lacks this kind of stuff and it's a shame these posts don't get more attention.
I'm actually working on something similar myself, a direct converter for developers that goes from Figma to MTA. You design your UI in Figma, tag your layers with suffixes like _checkbox, _image, _button, etc., and it exports the whole thing ready to use. Different approach but same goal: making UI development less painful.
Good luck with the project, hope it gets the traction it deserves.