The Site Identity menu in the customizer lets you set the logo, site title, tagline, and favicon.
To use an image for your logo, click the Select logo button to upload or choose an image from the media library.
If you would like to use text for the logo, use the Site Title input box.
The tagline text for the Ariyah theme is shown in the large Hero image area over the background image.
If you want to hide the text, just uncheck the “Display Site Title and Tagline.”
Also known as favicons, 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.