How to change the mobile phone WeChat wallpaper?

How to set the wallpaper of WeChat homepage:

Tools/materials: iPhone 13, iOS 15, WeChat 8.0. 16?

1. Open the WeChat my page, click the setting options in the page, turn to the setting interface, and click the general options. ?

2. After switching to the regular page, click the chat background option in the middle of the page. ?

3. After jumping to the chat background page, click Select Background Image at the top of the page. ?

4. Select your favorite theme wallpaper, click Finish in the upper right corner of the page, and then apply the theme wallpaper to all chat scenes.