Muller made all sorts of small design moves to milk the show. The lights are kept brighter over the manufacturing area for safety and quality assurance, but they also create a natural stage effect to emphasize the theater. Look closely, and you’ll see that louder machinery has been padded to dull the sound (and acoustic paneling, disguised as wood slats on the ceiling, runs backup to control acoustics). Plus, those Willy Wonka pipes that transport the beans around the floor—what Muller affectionately calls the "jewelry" of the manufacturing equipment—don’t need to be transparent to work. That’s just for the benefit of viewers.