There are two kinds of Divi child themes, blank child themes you create yourself with a plugin like Divi Children and premium Divi child themes from third-party designers. A blank or standard Divi child theme includes a selection of core files you can use to safely edit your Divi website. For example, if you want to make changes using PHP or CSS. Premium Divi child themes, in contrast, are all-in-one third-party child themes that can be found in the Divi marketplace. These include everything you need to build your website, so if you purchase a premium child theme, you don’t need to use a regular Divi layout pack. The ‘parents’ of these themes are first-party Divi themes.