The phrase refers to digital images featuring the United States flag, designed to be used as backgrounds on devices employing the Android operating system. These images are typically downloaded and set as the home screen or lock screen visual on smartphones and tablets. A user might, for example, search for and apply a high-resolution image of the Stars and Stripes waving in the wind to their Android device.
The availability and utilization of such imagery serve multiple purposes. For many, it represents a display of patriotism and national pride. The digital representations can also act as visual reminders of historical events, civic responsibilities, and national values. The practice reflects the broader trend of personalizing digital devices to reflect individual identity and beliefs.