To add a brand icon to your product page follow these simple instructions

First ensure you have crisp custom image for the brand. Upload a custom brand image via the Brands tab in the app

Now you are ready to add the Brand icon

1. Open your Theme Customisation menu and Choose a  Product Template

2. Choose the Add Block (or add Add Section if your theme doesn't support Blocks)

3. Select the 'Instant Brand Icon' option and click 'Save'

4. Configure placement and size using the settings