Comment by freedomben
2 days ago
(IANAL) Using it for commercial products isn't grey area at all, it's explicitly allowed. Pretty much all you can't do is create a component library based on it. You can also freely use it in open source as long as you aren't making a component library.
If it wasn't usable in commercial products, I don't think anyone would pay for it.
I should’ve clarified. My apps are all open source so it didn’t feel right putting their UI for free out there. It does happen in some projects but it felt easier just to design components myself.