After rolling the design out to both Android and iOS users, Twitter has enabled Night Mode for desktop users of its platform. The company allows the feature to be turned on by clicking your profile picture and selecting “Night Mode” from the drop-down menu. This darkens the UI of the service and makes it more suitable for viewing in darker environments. Unfortunately, the feature can’t come on automatically like it can on mobile, but that function is likely not too far away.
— Twitter Support (@TwitterSupport) September 6, 2017
Notably, not all Twitter users are seeing this feature yet. Luckily, both my personal and the official Matridox account are seeing the change. If you see the change on your end, hit us up.