Shrink for Github - A macOS app for your Github issues
Stylebot - Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me
GitHub Reader - A quick way to browse GitHub issues and pull requests.
Dark Reader - Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
Codetree - You can manage your entire development process through GitHub.
Stylus - User Styles Manager - Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.