Fork colours

I'm restoring/rebuilding a 66 S3 LI. This has been (badly) repainted at some time. I'm about to get the frame powder coated white, along with tool box, tank etc, however I'm unsure what colour the forks should be, I spotted a GP last week with a silver colour which I was told was the original, but I thought all Lambrettas had white forks and hubs? Any observations?