So I contacted Nalle13 and he's a real WP expert.
He told me this:
"As for the WP liveries... that thread dealt primarily with hood units so we'll stick to that. The F's and switchers are a story by themselves... ;-)
There were three different basic paints:
The Zephyr scheme - silver and orange. Variations included black or silver lettering, some units had black anti-skid paint on top of the nose, some didn't.
Perlman Green: Dark green with orange lettering. Variations in the striping on the ends.
New Image: Dark green ( "greener" than the PG green and not quite as dark ) with orange lettering, nose/long hood end and cab sides ( green numbers ).
Then there were the oddball GP35 #3003 that was solid orange, akin to the "Pumpkin" F-units. the only hood unit to ever wear that scheme. And finally the Bicentennial units that were red, white and blue for a couple of years...
All schemes featured black underbodies and trucks.
There were never any black hood units. Only switchers were ever black."
Thank you Nalle.
