This site has a built-in light/dark mode. It detects the user's preferred color scheme and automatically switches to it. You can also manually switch between light and dark mode by clicking on the sun/moon icon in the top right corner of the page.

The theme is available as open source under the terms of the MIT License.

Originally, al-folio was based on the *folio theme (published by Lia Bogoev and under the MIT license). Since then, it got a full re-write of the styles and many additional cool features.