Just fork the repo and adjust the _config.yml to use with Github Pages and your page is done.

Note: If you want to use this theme in a subfolder, then you need to create a gh-pages branch in your repo.

You can also create an empty repo, add index.html and archive.html files, which can be empty but need to contain front matter, and add this to your _config.yml:

remote_theme: niklasbuschmann/contrast

plugins:
  - jekyll-remote-theme

For an example repo you can look at the demo of this theme.

• supports dark mode on macOS Mojave
• MathJax support
• no external ressources
• included archive page
• supports pagination
• feed generation
• responsive
• syntax highlighting
• supports comments via disqus or isso

• Minima
• Lagrange
• Font Awesome
• KaTeX
• Pygments

public domain