I spoke with several people about alternatives to "color" brake calipers. Painting only lasts a short time and you end up with dirty paint; powder coating is effective, but you are without a vehicle until the calipers are finished, so covers are the best alternative. Leprecon has several colors and will add a custom label to the caliper.
Just had wheels on my Audi A5 S redone and the calipers look great.