Oh boy…
I find myself conflicted on this one, to be frank. On the one hand, this quote more-or-less ignores grey and black as colors, which were rather prominent in the sockets of the respective sets, which leads me to wonder if an entrant could use grey or black prominently the same way most Nidhiki MOVs in the past have used silver. On the other hand, just because there is no need to be dual-colored, why couldn’t he be (or any other potential Toa of Air for that matter beyond Red Star shenanigans)?
I agree. Personally, I believe this is the color the author had in mind when using that word.
Edited for Double Post - BioKnight