Dye wood, fungi, and lichens. Most dyes are synthetic, i.e., are man-made from petrochemicals. Other than pigmentation, they have a range of applications including organic dye lasers, optical media (CD-R) and camera sensors (color filter array). Textile dyeing dates back to the Neolithic period. Throughout history, people have dyed their textiles using common, locally available materials. Scarce dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes Tyrian purple and crimson kermes were highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad, indigo, saffron, and madder were important trade goods in the
Tyrian (video game) released in 2007 Tyrian and its assets as freeware, along with some Game Boy and Game Boy Advance versions. Following that announcement, in April 2007 Daniel Cook announced the free availability of his Tyrian artwork (not including the later work for the Game Boy Color edition and for Tyrian 2000) under generic liberal terms of the open content Creative Commons Attribution 3.0 License. Since then the community development happened on a bitbucket repository with many ports for many mobile and desktop computing platforms. The music of "Tyrian" was created by Alexander Brandon with additional music by Andras Molnar, and is