You can easily set a favicon for your ProPhoto 7 site right in the default WordPress settings. To do so, navigate to “Appearance” > “Customize” in the WordPress admin area. Click the “continue” button to move past our notice, and then click the Site Identity option. Upload your image in the “Site Icon” area (needs to be 512×512) and after it is set, then click the blue “Publish” button at the top to save your change.
That’s it, you’re done, your favicon is uploaded!