Add a custom logo using the WordPress custom logo theme feature, if you’re using Storefront 2.0+ and WordPress 4.5+.
1.
Go to:
Appearance > Customize.
2.
Open Site Identity.
3.
Click Select Logo.
5.
Save & Publish.
1.
Go to:
Appearance > Customize.
2.
Open Site Identity.
3.
Click Remove. Or
Change Logo and then
Select File in the window that opens to choose your new image/logo.
4.
Save & Publish.