Comment by thegiogi

On the css side, I can tell you that rio (that is by no means the first library of its kind) actually does not require any knowledge of css to be used. It does not use the same concepts. While the simplification costs you some levels of customization, it is not something that would truly matter in a lot if not most of its use cases.

The simplified layout system comes with its own inspection tool built into the dev version of your app so you get productive in an hour or so. They really got that part right in my opinion. As soon as they make custom components done I’m gonna discuss adopting it for our internal tooling.

I am not affiliated with them btw.