How to customize the mobile menu when the header is applied from the Divi Theme Builder?

When the header is not the default header in Divi and has been created in the Divi Theme Builder, you can customize the mobile menu by following these steps:

1. Move to the WP Admin > Divi > Divi Theme Builder.
2. Edit the header.
3. Edit the menu module within the header.
4. Go to the Design tab.
5. Here, you will find settings for the mobile background color and mobile menu text color.