That is the trouble with braking components, not a lot of emphasis is put on appearance of them as standard and also with the use of wheel cleaners etc they can get to look a sorry state, and when you have a very open alloy wheel it really shows.
We have a lot of complaints from usually Z4/X5 owners about their centre hub section of the discs looking corroded so end up painting them silver, something which will probably get done on my Leon once I get the starfish alloys fitted to it. Plus i'm going to hammerite my tow bar black so will probably drop a bit on the calipers while im there.
BTW spudisdabest, I was'nt implying that you were trying to imitate brembo's, just seemed a good place to comment on the covers as I was amazed to see them the other day.