How can I remove a stain created by the sun from the front of my fridge?

I'm not certain if this will explain correctly, but the sun shining through a piece of construction paper art on the front of my white refrigerator has created a stain/shadow that I cannot seem to remove. I've tried Oxy Clean, Mr. Clean Magic Eraser, alcohol, nail polish remover. Just about everything I can think of! Does anyone have ANY thoughts as to how I might remove it? Any suggestions would be more than appreciated. :)