We printed an edible photo image using a Canon MG6620 edible ink printer to show the effects of color management settings on the output of your colors.
We used the same edible paper for both tests (in this case we used InkEdibles Artisan Frosting Sheets). The photo that we used is from the upcoming sequel to Alice in Wonderland called "Alice through the Looking Glass". We printed Alice's photo.
Here is how the edible prints turned out, pre and post color management settings:
The top photo was printed without changing any settings on the printer. The 2nd photo was after changing color management settings, as shown in the screenshots below, which can be saved so that you only change settings once: