https://wccftech.com/apple-might-introduce-matte-black-color-on-future-iphone-ipad-macbook-and-apple-watch/

There's no doubt that Apple files a lot of patents. We may not see the company working on immediate implementation but it's always good to see in which direction it is exploring. Now, Apple has filed a new patent for lighting absorbing matte black finish. According to the patent's images, the new finish will be implemented on a wide range of Apple products which includes the iPhone, iPad, MacBook, and even the Apple Watch.

Apple introduced a matte black finish with the iPhone 7. However, while the color could potentially be similar, the one on the iPhone 7 did not feature light-absorbing capabilities. The patent was filed to USPTO titled "Anodized Part Having a Matte Black Appearance" and mentions details manufacturing process and the benefits of a Matte Black finish. There is no specific finish that the color will be applied to. As per the patent, the matte black finish can be used on metals, aluminum, metal alloys, and other material. What this means is that the stealthy matte finish can be applied on almost all Apple products.