I matched the colour to the backglass on the one that I sprayed.

Thanks for that. My existing back glass has been touched up a bit and is not as bright as it could be but I have a new one coming from CPR. How is the Gold/Yellow on the backglass compared to the playfield?  Compared to photos I've seen, the yellow on my playfield looks different to the gold on the cabinet. Its hard to tell from photos though.