COLLECTION - How to use the brand template
You will need to make sure that Warehouse is the published theme before you can use this feature.
By default, Warehouse will show the collection image as a banner, as shown below:
The theme also offers an alternative layout for collections, that looks like this:
It is especially suited for brand collections, where you could use a logo.
To choose this collection type, open the the collection in Shopify admin, and on the bottom right, in the "Theme templates" box, choose "collection.brand":