Twitter is expressing that they are generally listening to the user interests and demands and has provided a true and battery saving dark mode.

Twitter's "lights out" dark mode for iPhones

The company “announced” that, the dark-mode with a proper black background which it’s naming “Lights out” is rolling out today. This Dark-Mode is no for Android users and is only for the iOS Apps.

Just like all the advanced and modern flagship smartphones, iPhone also included an OLED screen (organic light-emitting diode). The OLED panel actually only lights-up the pixels that are not black so, therefore, a lot of energy could be saved.

The use of “Dark-Mode” or black background are typically the most popular and can definitely help the smartphone to increase the battery life