Quote Originally Posted by Lumia View Post
I think the color theory is more/or maybe less complex than just comparing the exact RGB numbers. If the colors were arranged on a color wheel chart based on the position of their RGB and then compared on their value and distance between other colors, I believe it would be easier to see in which direction to change the coloring with the corresponding foods.

This is the closest thing to a guide I've seen, and makes perfect sense. It also matches with the people progressively making changes and reporting here.