Favicon is the small icon for your website that are typically displayed beside the address bar in your web browser or on your window tab. All Bluchic Themes show “bc” favicon by default.
In order to change the favicon, you can use WordPress built-in favicon feature (which they named it as “Site Identity”).
- Go to Appearance > Customize > Site Identity tab.
- Click “Select File” to select your own favicon.
- Click Publish
Try to makes sure the image is square and sized at 512×512 in pixel.