I'd love to do this, too.After looking into the code a bit, I found that the background colour applies to the view itself (when you click "View larger version", you'll see the name of the view on top, and behind that is the view's background colour),...

You are definitely not the only one experiencing this issue: https://community.airtable.com/t5/automations/cannot-assign-list-of-object-to-collection-of-complex-types/td-p/138877