Oh I see, I use tailwind lol, I just never paid any attention to the logo. Also I wouldn't really consider it as a separate thing from css 😅 All the documentation tells you what resulting css it's going to generate from the class names.
Utility-first detractors complain a lot about how verbose this is and, consequently, how ugly. And it is indeed. But you’d forgive it that if it actually solved a problem, which it doesn’t.