After entering Xiaomi's personality theme, there is a cool wallpaper in the middle of the bottom of the screen. Click on Cool Wallpaper to see many dynamic wallpapers. The current dynamic wallpapers are free to use, and there is no need to pay rice coins.
Then select a wallpaper to download, click Use Wallpaper after downloading, and then two options, Application Desktop and All Applications, will pop up. Click all applications to set the dynamic wallpaper to lock screen and desktop.
If you want to change the desktop wallpaper and keep the lock screen wallpaper, you only need to click the application desktop, which will not affect the use of the lock screen wallpaper. Xiaomi's theme provides a variety of mobile phone costumes, users can enter to find what they need, but some themes and fonts require users to pay to use.