[crubier]

Not trolling. But your second example is indeed more meaningful of the way I'd like to customize styling. And on that aspect, it is -as you mention- exactly the same as chakra, line to line. Except that Material also has a lot of additional stuff and opinions that I don't need.

But anyway, it looks like we have had different experiences, maybe due to different use cases. My experience with Material UI has been the opposite of yours: It is cool to get a quick project stated, and I would use it again for small projects. But for a large SaaS application like I do, that includes 3D views, Openlayers Maps, React Select and others complicated 3rd party libraries and custom UX patterns, I would NOT use Material UI. Too opinionated, not flexible enough, and not being based on emotion is a show stopper for me. So let's agree to disagree maybe on that point.

Regarding the LOC, yes it does indeed say something about developer productivity, and this does match the contortions I had to do in the past to make Material UI fit my need. Lot of LOC, lot of time, no-so-cool results. I want more control, that's all.