Dark Mode in Facebook Messenger was in beta testing for selected users last year and we were expecting the feature to become available for all soon. Finally, it looks like FB messenger is getting the new feature. The Dark Mode option is currently rolling out to users and it is believing to doing so in phases as only few users have reported this so far.
We expect the feature to become available for all audiences in the next few days. However, Facebook has decided to play a little trick with you for unlocking this feature even after you receive it. Check below on how to unlock the dark mode in the Facebook messenger app after receiving the update.