Has anyone use sugar sheets/frosting sheets/edible images, whichever it is called. I had something printed and was wondering if I should put it on the cake the day of or I can put it on the cake the day before. Thing is the cake will need to be refrigerated and I'm worried that when I take it out, the fondant will sweat and perhaps make the colours run? Anyone have experience with it and can give some advice? TIA!