Important safety tip: This is what happens when brand new plastics are put on a playfield in 1979, the playfield is crated up and not exposed to any heat, weird air conditions, or humidity, and 40 years happens:
The lighter color plastic "leached" the red dye out of the red post. Sorry to say the same thing happened with the Tuff Coat on the playfield.
My guess is that a good way to prevent this would be to spray the top and bottoms of the colored posts with some kind of krylon matte clear coat or something along those lines. @vid1900 any thoughts?
FWIW, I don't think this is something you can fix, as the red dye is impregnated deep into the plastic. I'll probably hide this with shiny washers and call it a day. I'll probably also order new red posts and hope that some magic in modern manufacturing makes this happen less frequently.