title: What does art.scnassets stand for?
body: <p>I am looking into ARKit (iPhone framework), and one of the folders that comes for free with an ARKit project is a folder with the title: <code>art.scnassets</code>.  What do these stand for: <code>art.</code>? <code>.scn</code>? <code>.dea</code>? <code>tex</code>?</p>