The first screen we are presented with is the branding options. This is where anything related to branding (with the exception of the login page) can be changed including the addition of logos and the removal of WordPress branding from the build.
These options allow for developers to remove any branding related to WordPress. This may be necessary in certain instances for consumers to keep them from realizing the site is just a WordPress site. Anything from custom page titles, to hiding the version number as well as logos and links are on the table here.
Admin Bar Branding
The admin bar is the top bar that shows on every page for logged in users. Options available here include a custom logo (height maximum of 20px), alt text, as well as replacing the URL to WordPress.org with a custom URL.
Side Menu Branding
Side menu branding is often helpful as it is the main admin menu. Options available here include a custom logo (width maximum of 160px for expanded and 36px for collapsed menus), alt text, as well as adding a custom URL to the image uploaded.
This option will only change the exit button on Gutenberg to be either an exit icon, admin bar logo, or custom icon.
Footer branding can be used to replace the footer “Thank you for creating with WordPress.” (max height 50px), as well as footer text, URL and any custom HTML. These footer changes will show on the admin dashboard.