Huawei Mate 9 - Manual (Page 23)

2
Touch Settings > Badge app icons.
3
Toggle the corresponding switch to enable or disable notification badges.
Setting the home screen wallpaper
Choose from a wide range of themes and wallpapers to personalize your phone.
Changing the wallpaper
1
Open Settings.
2
Touch Display > Wallpaper > Set Wallpaper.
3
Select the desired wallpaper and follow the onscreen instructions to set it as the home screen
or lock screen wallpaper (or both)
Screen and Display
17