Follow these steps to load the customizer, before we go through the different sections:

1. Log in to the WordPress Dashboard as an administrator.
2. Click on the Appearance menu.
3. Click on the Customize option. You will get a screen similar to the following with the available customizer options for the theme:

The Twenty Twenty theme provides support for nine tabs, starting with the Site Identity tab. We are going to look at six of the nine tabs common for most themes.