MessengerLite: An ultra-simple facebook messenger. US users find the MessengerLite dark mode a favorite feature of theirs in particular. The dark mode in MessengerLite not only reduces eye strain but also saves battery on devices that support this feature. 1. Open Messenger Lite and head to Settings > Appearance / Theme settings (may vary). Choosing dark mode immediately converts your chat background and throughout the app to a smooth, dark interface. The reason many people love MessengerLite dark mode is that it is easy to see at night. The dark mode in MessengerLite is a small, yet effective way to make your messaging app more personalized and easier on the eyes which adds up to make chatting better. On the other hand, as MessengerLite dark mode is now being rolled out to users in the USA, there’s no better time to change and enjoy a more comfortable, eye friendly interface while keeping in touch.