Duolingo Dark Mode

** DEPRECATED - Duolingo now has an official dark mode using the same color scheme available in the settings. This extension is no longer updated ** This is a simple extension bringing the Duolingo mobile apps' dark mode to the web version. Many other available options to enforce a dark mode on the website mess up certain designs or characters, or aren't fully compatible with all elements on Duolingo. This project is meant to solve this problem by styling all parts of the Duolingo website directly.