In this article: How to customize app appearance
To configure app appearance, go to Settings > Appearance.
Appearance settings consist following options:
Theme – a color theme for the user interface: Blue, Red, Light, Dark, Black, and System (light or dark – depends on the system settings on Android 10 and higher);
Background – select type of lock screen background appearance
Select image/texture – select background image or texture for lock screen
Text – select text color for lock screen
Preview – see overall appearance with existing settings
The lock screen background can be customized by selecting pre-uploaded textures or uploading your own image.
Once everything is configured, the screen appearance will change accordingly.