Check these guys out: http://www.automotivetouchup.com/
On my old Cherokee I needed to replace 2 bumper caps that were damaged, so I ordered the caps from Rock Auto and paint from these guys. Came in, and once I prepped and painted, you couldn't tell the difference, looked great. The can I used was a full size can like a normal Krylon or Dupli-Color paint would be, and I still had plenty left over afterwards. I was very happy with their product.
I noticed that they don't show Gecko under 2013, but do for 2012, so it is available.