Microsoft tests advanced theme customization with Color & Image Themes, daily wallpapers, and a live preview pane in Edge ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Sure, it applies a dark-gray theme on the user interface (evident in the system apps) and reduces the overall brightness ...

it will change the other programs in Office to the same background. If your Office Programs are in the Dark Mode, the Office Background you selected will not be transparent like in the white theme ...