about 4003130102 ppl have asked about this. I believe this is the only overt reference in the series to the books being black & white.
answer: I DONT KNOWWWW YET! heahaerahaha. I haven’t tackled vol 3 yet - its color edition won’t be out for over a year. You’ll have to pick it up in 2013 and find out what new, even meta-er jokes come out of this humorous situation.