Frank, axanthics can and do brown out as they age. This is a fact with species of axanthics across the board. Why do a lot of them brown out? I have no clue. but I do not think int has to do with actual pigmentation. From what I understand the Super Arctics do not brown out. As far as the green hogs go, I can tell you from experience that it is hard to capture green in photos when it comes to hogs for some reason. I do have my technique to capture the green in them without using a photo editor though. I will start a new thread to show off some green hogs.