Icon overlays in desktop mode

Icon overlays could really enhance desktop mode. For example:

Rating stars along the bottom of the box art A heart icon to indicate favorite games A ribbon on one corner to indicate "completed" Playcount badge

Ideally there would be options to turn each one on/off, and to indicate where on the box art the icon will be displayed. If these had a slight bevel and shadow to them like the box art does, it could really look nice.