You can display an image on the top of your playlist.
Go to Contents.
Click on the content that you want to use.
Click on the Add-ons button.
Open the Add-on Marketplace.
Click on Image Overlay and click Select.
Image Overlay add-on is added to your content.
Hover over the add-on and click on Configure.
Click on the pick image button. This will open the media library.
Select the image that you want to display and click on the select button.
You can set the position, margin and size from here. Check the previews to see if everything is correct. Click done when you are finished.
Request Approval, Approve, and Publish your content.