Prophet 08 PE knobs

I recently purchased a Prophet 08 PE off of Reverb and got it for what I feel was a really good price. The owner had three dead keys and decided to sell. I was able to get the keys playing yesterday evening and the board is in really good condition. The only cosmetic issue is some yellowing to the keys. But the other thing that’s hit my radar is that many of the knobs are more of a bronze color on top, instead of black. They’re grouped together by color in a way that makes sense so I didn’t question it, but as I see more pictures of this keyboard I’m beginning to think they’re all supposed to be black. Does anyone have one of these to confirm? Thanks for your time!