On Tuesday, Viber tweeted about an update for the messaging app. Following Facebook Messenger's enabling of Dark Mode, Viber is next up. Walk on the dark side 🌃 Check out our new dark mode theme on Android! Save battery 🔋, protect your eyes 🙄, and keep the room dark when other people are trying to sleep.Try #DarkMode Now: https://t.co/Xn0QIKbrJX pic.twitter.com/DJK22oJMNR— Viber (@Viber) March 5, 2019 Upon opening the app, you should see the notification right at the bottom of the chats list. The dark mode toggle can be found in the "More" tab > Settings >...