The Sapphire Radeon HD 4850 retail box is black with red accents. This is the case it should be since ATI graphics are known to be red. Also, red and black are my favorite colors. While the box says it supports some stuff, there is no mention of Linux support even though AMD has said it wants its partners to include a penguin or other open sourcey stuff on the box. The Catalyst 8.6 drivers for Linux support this GPU and were released last month.

http://www.aselabs.com/articles.php?id=265