A dark theme is making it because of Google Maps as some users are reporting. Google rolling out Google Maps Dark mode version 10.51.1 running Android 11 users
It seems the change is gradually rolling out on the server-side as updating to the most recent version of Google Maps isn’t enough to determine the selection appear within the app’s settings menu.
The appearance setting within the app will allow you to force the dark theme indefinitely or match the Android phone’s universal system theme setting.
There has always been an auto night-mode that changes on during navigation when the sun goes down if the user is navigating through a tunnel, but it had been never applied when browsing maps or menus.
