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) in the LDS (Loudness Sound System) format. The "Tyrian 2000" CD includes 25 of the tracks in red book audio format. The red book tracks are omitted from the freeware version due to the download size. The tracks "ZANAC3" and "ZANAC5" are reproductions of two songs from the MSX/NES game "Zanac". Alexander Brandon released the music of "Tyrian" for free in August 2010. The game mostly received positive reviews. "Tyrian" scored 87% in "PC Gamer" (one percent below their Editor's Choice award). A reviewer for "Next Generation" complimented the use of a shop system for acquiring powerups, the ability to