Well, I'm not a native english speaker so I might have some difficult describing. Look at the ceilling-wall transition: there is a standard ladder-effect. Immediately below that "effect" I glued the racks (the plastic conducts where the cables are). As the effect, the wall and the racks are all white, and the depth of the "effect" is the same as the rack depth, you almost don't notice the rack (you just think the whole thing is the "effect"). If you look careful, you'll see the rack below the "effect" however.