For popular series, official colored releases are made. I know the colored One Piece tankoubon have been going on for a while and I think the raws are in the high 80's if not 90's. I'd be willing to bet that this is the English version of this (looks like the digital access per the link).
On the topic of the Ace novels, there's also similar Law and even Robin projects in the works. The Robin one especially is still quite new info. The Law announcement was a while ago, so I'm kinda surprised I haven't seen anything on it.
Thanks! Yes they do appear to be exactly that but oddly not all of them are available to purchase. I got what volumes were available after I was able to charge my Kindle Fire and see the samples to check against the scans. I bought the Ace novel though. Haven’t gotten a chance to read it yet. I think the Law one is done, just not in English? Pretty sure this is the Japanese language Law Novel. I could be wrong though.