Changing the theme of your device will adjust the look of your whole device, not just the home screen wallpaper. Themes can change the wallpaper, text size, and more.
1.
From the Home screen, touch and hold an empty space.
2.
Tap Wallpaper & theme.
3.
Tap Theme.
4.
Select the theme you'd like to use.
5.
Tap Apply.
6.
Tap the Home button to view your changes.
7.
You've completed the steps!
1.
From the Home screen, touch and hold an empty space.