Because of so much free play in the assembly:
the LCD can be crooked in its frame very slightly
the frame can be crooked in the chassis
and the bezel can slide around in all 4 directions and expose metal wherever you like
Enlarge beveled edge of bezel to more closely match sheet metal - currently there is a gap all around
Reduce hole size for standoffs in LCD frame - current hole sizing allows the screen to be moved laterally or rotated slightly
These fixes should help ensure the LCD is installed correctly the first time where no reliable checks are present, reduce the frequency of rework required in the event it is deemed crooked, and improve cosmetics for the bezel.
When changing the bezel, the edge that is the top while the part is being printed could stand to be wider to match the sheet metal. On alpha slices, many bezels the very thin top layer would peel off, leaving a white rough edge exposed.