So back to the topic at hand, In another thread I had mentioned that I thought axanthics should be called hypo-xanthics. My reasoning was that since they brown out over time, there must be some xanthiphore involved. Tim said he thought the browning was due to erythrispore rather than xanthiphore. I think that is a real possibility, and would explain a lot of what we see in all the different ball pythons. That is what got me thinking about this.
As a graphic designer who has spent a lot of time taking two color jobs for print and turning them into the most colorful pieces possible, I learned a lot about the outcomes of mixing different values of certain colors together. Especially mixing black with a primary or secondary color. I learned that mixing all the possible combinations of black and yellow pigments gives us shades of yellow, gray and dull greens that always reminded me of pea soup.
I know Chris Simone was working with a possible recessive project he named "Olive green". Now my thinking is that if a project like that proved out, it would be a true anery ball python. That's assuming there is red pigment at play in ball pythons. Any thoughts?