I sent photos of that blue grill to HK last night and asked specifically about that color , waiting to hear back on that .
He had named 4 colors when I asked him that question in the interview, blue wasn't one he named , but he did talk about "experiments" when we got on that subject , he specifically recalled what he said was a Fire Hydrant yellow with a flat top that his cousin had .
He recalled Black , Black and white spiderweb , Black and yellow spider web and he said they were able to do a run of a Bronze color.