@red-rosefields - Look closely, do you now see ALL of the available TW3 classes? Or only a subset of the ones that were being used by the temporary component? I believe it to be the latter. I have already suggested the same intuitive behavior for the colors too as posted here.
I too am a Tailwind developer, and have previously voiced my frustrations with the lack of true Tailwind support. The current implementation is half-baked at best. But once you figure out all of the workarounds, and get all of the hacks in place, it can be pretty usable. It’s just not easy, and takes a lot of trial, error and patience.