The skin is customizable. There's one that I propose for black-on-white: https://dystroy.org/broot/documentation/configuration/#white...

and I guess people more used to black-and-white could submit a better one

thanks for thinking about that! do you think there's a way to identify that the terminal is black-on-white and use something like that by default? i don't really care that much about specifics as long as it can pick one automatically depending on terminal settings.

It should be possible. I'll open an issue for that. edit: https://github.com/Canop/broot/issues/87