How to make a red envelope cover?

Click on the red envelope and take WeChat as an example. Select the red envelope icon to enter. Click on the red envelope cover and select the option of the red envelope cover. Click Add to select the Add option in the upper right corner. Enter the serial number to confirm the serial number of the red envelope, and click OK. Use the cover of a red envelope. You can choose to use the cover when sending red envelopes.