Allow you to use apps on your car screen.
Personalizations
Go to Settings > Personalizations to customize your phone.
You can change the Wallpapers, Clock styles, Fingerprint
animation, Icon styles, Colors, Font and display size, Notification
drawer and Horizon light here.
Wallpapers: You can use the wallpaper provided by OnePlus,
or you can use a personal photo as your wallpaper.
Always-On Display: Including Display options and Display
settings that you could customize your phone.
Display settings
You can set WHAT TO SHOW:
Fingerprint animation: There are seven different fingerprint
animation effects that you can select.
Icon styles: Customize the status icon shape, there are two
shapes available: Material Style and Pebble.