I had heard that it was found out a while ago, but I had never touched the game. Going through it yesterday, the art seemed a bit off in plenty of scenes. Posted on 4chan about if anyone has proof I was correct on some of my guesses. Like Dannys mom, i would say that most of her stuff is traced. Even with the "style", alot of the art is off in many of the scenes.
Next update it gets, head over to /aco/ and find the thread. People tend to flood before or after an update. I can attach a file here as proof, but i dont know if that breaks any rules.