[gandalf612]

Honest question: What would you want them to do instead? The mechanicals need louvers to function properly. The way I see it black is the best possible color when you consider the fact that they can't match them to the color of the glass since that changes every day depending on lighting and weather. Painted metal wouldn't be able to match the shifting, so I'd personally much rather have consistent black louvers than blue louvers that are only matching the glass once a year.