The Heading Page is the top section of each collection, designed to help users immediately recognize the content of the collection and navigate the website easily.
You can see the collection’s featured image, its title, and the breadcrumb navigation.

1. General setting
You can use the collection image that has already been uploaded to Shopify, or upload a new image yourself. In addition, you can adjust the overlay and the spacing between the title and the breadcrumb.
Please check video below to see.
2. Show full collection image
If you want to show full collection image, you can use hero image section: