One aspect of egui-miniquad (and miniquad, and egui) I personally value is the fast compilation times, and adding syn as a dependency hurts that. It's up to the maintainers if they're okay with this, but if not, I have a feeling this can be accomplished through some combination of new traits and wrapper structs. Alternatively, could also look at something like venial.

Ok so i figured out a way to do this without macros.
Let me know if this solution is good

I do like how this looks more 🙂 I think "Stage" is not an intuitive name, though I don't have a real suggestion to improve it. Also I think the example at the top of lib.rs should be updated too.