Discoloration of Exhaust outlet pipes - normal?

[Dirt_McGert]

Sorry for all the noob/lame questions, I'm completely new to bikes.

Is minor discoloration of the leading exhaust pipes (right by the engine) normal? If you search the bike pics on this forum, you'll see some discoloration of these, most of which look like mine. It's not black, just some goldish, bluish discoloration, which ends before the curve downwards of the pipes.

Is this normal? Or does it mean the engine has been severely overheated in the past?

Yeah, I'm paranoid lol