As far as the number 47 goes, it's the 15th prime number, and if you take only the prime numbers in the sequence you get green values of:
66 61 6D 5D 62 5E 00 6B 64 5D 5F 72 66 66 6E
Turning this directly into ASCII didn't do much good, as some of those are symbols instead of letters, so I just converted it to a cryptogram, where
you get:
ABCDEF GHDIJAAK (assuming 00 is a space)
Using a cryptogram-solver, there are at least some legible answers, but nothing that really seemed to scream "answer."
One possible solution is "LIVRES FORMALLY," and a search for livres leads to
this
Another possible solution to the cryptogram is "LODGER SIGNALLY," which sort of made me think of Masons, with their lodges and symbols and such.
But it's not enough information with just those 2 words to find anything.
I don't know if I'm on the right track at all, but at least it's some legible answers for a change as opposed to all the gobbleydygook I was
getting when I tried to sort this thing out earlier.