a damaged cent remember these cents all post 1982 are a 8 micron thin copper plate over a silver colored zinc core. I think you are seeing the zinc core showing through from some wear.
In that case, I won't coerce you into responding to a dumb comment just to get your next post. I'd rather see it come at a more meaningful time. By the way, I only need 19 more to reach 34K, but who is counting. Chris