Adding banner/profile image to Opensea collection

How do I change the background banner and image on an Open Sea collection, as seen in projects like BAYC.

Following this tutorial: Create an NFT and deploy to a public testnet, using Remix, the collection appears in Open Sea but the banner and image are blank. I can't figure out how to change them.


this is a option within opensea after claiming ownership of a collection.

I read that ownership on open sea has to be manually assigned. Do you have any experience with this?

I have claimed ownership of a collection on mainnet yet.

When on opensea you will find 'My Collections" in the dropdown, and from here you will want to click the expand menu next to Create A Collection and Import Existing Smart Contract.

Ahhh great! Thanks so much!