SilverStar17
Super Freak
Think he means just above the 'S' and below the neck - it's not a fading, it's where there's no material behind that top part so you see the colour of his skin come through the suit at the top if you close up.
That's what I sort of presumed also, but as you said, the reason for that is because there is no silver on the body there and it's the color of the skin showing through the suit, so it gives off a goldish hue