Back in March, Twitter introduced Lights Out, a revised version of its native Dark mode option. Instead of the dark blue background with white text that it was using with its Dark mode, Lights Out features a true dark black background and white text. Not only does the dark black look better than the blue, but it also saves battery life on phones with OLED screens. That's because these displays create the color black by turning off the appropriate pixels thus lowering the demand for power from the battery.
The Lights Out feature launched on iOS back in March. To enable it, users go to Settings > Display and sound > Dark Mode > Lights Out. The old Dark mode option with the blue background is now called "dim."
When Twitter announced Lights Out back in March, it had yet to disseminate a timeline for its appearance in the Android app. Last week, Twitter's VP of Design and Research, Dantley Davis, sent a tweet (via Droid-Life) with an update for the Android version of Lights Out. Davis wrote, "The feature is coming soon, but has been delayed a bit as we work on polishing the experience. Here's a screenshot of the current build (we've included it below). Looking forward to getting this much anticipated feature to Android users. We appreciate your patience."
While waiting for Lights Out to hit the Android version of Twitter, users can still use the current version of Dark mode which can be enabled by going to Settings > Display and sound > Dark mode. On Android, users can select to turn Dark mode on or to have it activated automatically at sunset.