This makes Facebook a peaceful place to live by removing distractions. In particular, it disables the feed on the main page and links to marketplace, videos and gaming. Easy to adjust (e.g. to reenable some of the features).
Helix's Habitica DarkCSS
This is a theme for Habitica that changes the UI to something more comfortable to the eye, especially at night. I have tried to stick to the official colours of Habitica where possible. Tested on Chrome, should work on Firefox and Edge. This is a personal project and will be updated as such.