Version: 10.3.1
Set your wallpaper
You can set a picture as your wallpaper. You can also choose a picture to display when your device is locked that is different from your home screen wallpaper.
Tip: When all of your apps are closed, you can set the option to show only your
wallpaper. Swipe down from the top of the screen. Tap
Settings > Display. Turn on
the Show Wallpaper When All Apps Are Closed switch. You can
swipe right to see all of your app icons.