In the chocolate appreciation thread where we put this together, we wanted to make our own version of this chart and we basically just made kind of a brown-gradient, going from lightest to darkest brown, without regard to the names. It seemed like that’s what the original /a/ chart did, with the names being a product of the entries, for the most part.
Except for their African Queen, which I think was a recolored pale chick. Which is kind of lame imo. They’re already using some /h/ artist’s OC, so if they were looking for a brown chick with some kind of tribal theme I can think of at least a few good /h/ chicks that would fill that category well without needing a recolor.