This guide shows the shade, highlight, and top +highlight tones for each base color.

These are intended to be mixed with the base color you are using to create a subtle progression of tone. For example, when highlighting Thornwood Green, do not use straight Rucksack Tan; just add a little Tan to the Green and highlight with that. Then add a little more and highlight with that, and continue until you have created a subtle progression of color. You can carefully blend each color, or you can just layer them on top of each other.