I think there should be a feature that lets you put an icon/logo on a set. Basically instead of the first 3 cursors/icons you added, a set shows an uploaded image in the Gallery.
This would require a lot of work to implement and space for the uploaded images.
Images that are uploaded would have to be stored and regulated.Someone would have to constantly review the images uploaded.
I think the current way an image is produced from the first three uploaded icons/cursors is fine for now.It looks nice.