A bit more info specific to the installation of the bezel, not necessarily the monitor.
The outside edges of the bezel are supposed to be trimmed so it will fit within the routed ledge around the monitor opening. Next the correct step for a real Pac cocktail would be to trim down a piece of smoked plexi the same size as the bezel so the plexi lays right in the routed portion and sits flush with the top panel. Next the artwork underlay, and finally the 1/4" glass on top of everything.