Howto add a collection banner to a product page template in Dawn template?

I have successfully added a block to one of my product template json files.

“banner”: {> “type”: “main-collection-banner”,> “settings”: {> “show_collection_description”: true,> “show_collection_image”: false,> “color_scheme”: “background-1”> }> }> },> “order”: [> “main”,> “related-products”,> “featured_collection_3mYRDQ”,> “banner”> ]> }> > When I view the page in the editor, I can see the block is added to the template. but there is nothing rendering inside the block.> >

> > It seems to be missing the collection object. I can’t understand how that is referenced and populated differently in the collections.json… I tried to add a parameter to the banner block but that didn’t work (ie. “collection”:“flexies”,)