I'll be calling it that from here on, so thanks for that, but I admit I was pleasantly surprised by how good it is. Studio Mir rarely disappoints in terms of quality (although I still think The Legend of Korra was their best work), but I really wasn't expecting the rest of the show to be worth watching.

What’s a Steven Universe of Superman mean?

Animation style—eh, it changes, cartoons have been getting more stylized/less detailed since, like, the 80’s. It turns out characters don’t need a million belts and pockets to be compelling, haha.

Theme-wise, Steven Universe is pretty well received.

Oh I agree, its just that Superman has always been painted as a wholesome softie in context of his more brooding teammates (JLA, anything that DC has produced).

Yet, here he is in a cutesy setting where rarely anyone is brooding, and somehow it just works. It even feels more true to his character, as the lightness of his personality and others is even more contrasted to the seriousness of the situations he faces.

The stakes are high, but goodness and strength of character prevails. Best animated version I've seen so far.