Light's name — the visual channel of the sensory lexicon, where a meaning is seen before it is read. Every atom in this Grammar carries one.
Latin color (colour, hue), possibly related to celare (to hide, to cover), from a root for concealment — colour, on this reading, is what covers a surface.
Light's own name — the visual channel of this Grammar's sensory register, where a meaning is seen before it is ever read. Every atom here carries one.