Hi AOC13,
If you are talking about KY196 COM era units the front facia's are easily removed once the unit is out of the rack, only 4 little screws on the side and the facia lifts off.
They are metal and you can paint the facia and I used to sand/rub back over the raised lettering only to remove the paint and this highlights it all nicely.
If this is what you were asking about doing, sorry to Avionicare!
