7-Zip ZStd has more advantages, it supports more compression like ZStandard, brotli, Lizard etc. Not only the Dark Mode, that's a bonus (and built-in!).
Gitcrap just gives me headaches, whatever and luzea tried to get me on there (with my tools) but it i guess i am to old or to bad eyesight for that
GitHub is a MS site, what did you expect. At the upper right, there are appearance settings where one can increase the contrast, that might help a bit.
It's more the way of publsihing the content and all the buttons that causes me to not go there, when i see such overkill i get headaches, the pages are dark by default because of the windows mode. It's not meant for me, i guess. But this is thread cluttering by us