I've read the Color Survey Results. There is a sentence:
Indigo was totally just added to the rainbow so it would have 7 colors and make that “ROY G. BIV” acronym work, just like you always suspected. It should really be ROY GBP, with maybe a C or T thrown in there between G and B depending on how the spectrum was converted to RGB.
What does it mean? I understood this acronym but why C or T? I translate this article into Russian, but do not understand the meaning letters C and T here. And why between G and B?
It really should be ROY GBP?