After a terribly long wait “WhatsApp from Facebook” (If you know what I mean) has finally started rolling out the much-requested dark mode to beta users of its Android app. The change comes with the latest version of WhatsApp beta (2.20.13).
If you are a beta tester/user of the app then after updating the app, go to WhatsApp Settings> Chats and look for a new “Theme” option. In the theme option WhatsApp allows the user to choose between Light and Dark theme.
According to some sources, if you’re unable to find the new feature even though you’re on the latest beta version, uninstalling and re-installing the app might help. But wait, first make the backup.