How to do the cover of WeChat red envelope?

The setting method of WeChat red envelope cover is as follows:

Operating environment: Huawei P50, HarmonyOS2.0.0, WeChat 8.0. 16.

1. Click the red envelope to enter the app, click the plus sign, and then click the red envelope.

2. Click on the red envelope cover to enter the red envelope page, and click on the red envelope cover.

3. Click Add to enter the red envelope cover, and click Add.

4. Enter the serial number to enter the add red envelope cover, enter the serial number and click OK.

5. Get the serial number If there is no serial number, click Get the serial number, and the page will jump to see how to get the serial number.