Customize: Site identity
In this section you can upload a site logo and favicon and define the sites title and tagline.
The main logo shown in the menu
The name of your site. This is shown in the
<title> of the site and in browser tabs.
The payoff of your website. Appended in the page
Site Icons are what you see in browser tabs, bookmark bars, and within the WordPress mobile apps.
Site Icons should be square and at least 512 × 512 pixels.