Chromatic gray is a gray color created by mixing two complimentary colors (opposites on a color wheel [red/green, blue/orange, yellow/violet) or by mixing all three primary colors (red, yellow and blue). Varying the percentage of how you much you mix of each of the primaries you can get hues of brown, warm gray or cool gray.
I also noticed that the cut marks didn't print in the above proofs like it did in my keyline prints. this is because i used a larger brayer (ink roller). since the brayer is the size of the plate it doesn't dip down into the open spaces. I'm going to try a few color proofs using a smaller brayer on the black keyline so that I can see if the textural effects I like in the keylines below will translate well in the color whole...oh, oh-oh-oh, i just thought -- i will use a smaller brayer on the keyline to ink the chromatic gray glaze, use a stencil to block the foreground then use the larger brayer to roll black ink. Since the larger brayer wont touch the gray glazed cutmarks I'll achieve two shades on one block! I may not have to carve another plate after all...woo hoo! I had a plausible idear!