The long waited Dark mode for Messenger (iOS and Android only!) is already here! You probably heard of it because you received a crescent moon emoji from a friend. Currently (06.03.2019) the dark mode setting can be unlocked by simply sending a crescent moon emoji
Once you send the emoji you will be prompted to enable dark mode. Dark mode is becoming a norm for any mobile app, web app or website. It is no surprise that the interest in dark ui has skyrocketed since 2018. As we are spending more and more time staring at screens, our eyes are paying the price for the screen addiction. The dark mode reduces the glare and is mostly useful at night or in low light environment.
Important - If you want to enable Dark mode for Facebook Messenger on your phone, the above information is sufficient. If you are looking to enable dark mode on Facebook and Messenger on desktop, keep reading!