Twitter rolled out an OLED-friendly dark mode called "Lights out" for its iOS app back in March this year. And last week, it was activated for those who were using the alpha version of the Android app. Now, the company has announced that lights out is finally rolling out to all the users of its Android app. Unlike the old dark mode, which is now called "Dim", lights out turns the UI of the app to true black, which does a better job at power consumption on devices that sport an OLED display. The images below show the difference between both modes. 'Dim' mode (left) vs 'Lights out'...
Source: https://www.gsmarena.com/twitter_lights_out_dark_mode_android-news-39769.php