tl;dr:
remote_theme: owner/theme-repo-name
I made a base theme that I call Minimal Uni that I think would be a good base to build a university course website. Clean, minimal, responsive, customizable.
- No Style Please - I found this AFTER making my own minimal theme template! Pretty good, but maybe a little tech-y
- Ed - good for writing, hamburger menu nav
- Garth - nice simple theme, no nav
- White-paper - another nice simple singlepage
- Scriptor - Beautiful responsive design, head & image of each post on frontpage, w/ top nav links - i use something like this for my own blog
- hikari - kinda nice kinda clunky blocky, pop-up hamburger menu
- Hitchens - attractive sophisticated-looking theme for longform blog writing
- Swiss - a swiss-design inspired theme, 1 column
- console - a minimal almost-good hacker-ish single column theme
- Duo - great for image-forward portfolio
- MSR Student Portfolio Theme - attractive gallery and good documentation - preview
Jekyll Themes gallery, free and $paid