The rails api docs are also going through a redesign, you can see a preview of the next design in edge: https://edgeapi.rubyonrails.org/classes/ActiveJob.html
I think it’s a a change in the right direction that removes the “aggressive wall of text” on longer pages and looks great in dark and light modes.
That one's a bit too much red for my taste :) There's a sweet spot to find that's closer to "nice accent colors" than "aggressive red wall of text"