Charcoal: Dark Mode for Messenger is a Chrome extension that allows the application of different colors modes for Messenger.

Charcoal: Dark Mode for Messenger is the unofficial Messenger dark mode which allows you to easily swap between dark and light modes. You can use Charcoal to ease your eyes while using Messenger and chatting to your friends. Toggling dark mode with any theme is easy: click on the Messenger icon on the top left of the web page, and set your preference.

Charcoal: Dark Mode for Messenger Features:

Messenger icon toggle on the top left of the web page to access preferences.
Choose between 3 themes: Charcoal, Midnight, and Deep Blue.
Toggle the extension on or off entirely, whenever you want.