I really don't know what to call it, but I'm going to refer to it as "silver leaf" because it reminds me of gold leaf. Many of the plastic parts in the play field have raised portions that appear to have had some sort of silver paint or "leaf" that has word off over time. It is definitely not colored plastic like the reds and blues. Has any restorer here had any luck bringing back the silver color? What techniques have you used? I once saw someone use an iron to apply some sort of chrome leaf, but I can't find that video anymore.