The Dynamic Theme App for Windows 11/10, lets you set & automatically change Bing and Spotlight images as background & lock screen dynamically.

Spotlight represents a clear departure from the platform’s origins of intimate communication with real friends. This diversification of functionality builds on a growing user behaviour trend: ...

Android "L" Spotlight: Colored And Transparent Status Bars Give Apps Even More Control Over Design. ... which gave app developers the ability to make the navigation and status bars semi-transparent.