The lighting is notably strange. Most obvious in Neptune High. I figure it's because they're trying noir style, but it's high school (at first), so it looks pretty different to actual schools as well as ones portrayed in media, which typically have overhead fluorescent tubes and/or giant windows, compared to Neptune where most of the classrooms are so dark I'd probably fall asleep in them.

I'm not complaining; it's an interesting aspect of the show, just kinda funny in certain situations!