Wikipedia
Flecktarn (; " mottled camouflage"; also known as Flecktarnmuster or Fleckentarn) is a family of 3-, 4-, 5- or 6-color disruptive camouflage patterns, the most common being the five-color pattern, consisting of dark green, light green, black, red brown and green brown or tan depending on the manufacturer. The use of spots creates a " dithering" effect, which eliminates hard boundaries between the different colors. The original German 5-color pattern is designed for use in the European temperate woodland terrain. A 3-color variation called Bundeswehr Wüstentarn is used for arid and desert conditions and is in use by the German Bundeswehr in Afghanistan.
Original German 5-color flecktarn has been adopted, copied and modified by many countries for their own camouflage patterns. For example, the first-ever digital camouflage pattern created, CADPAT, which launched the digital camouflage trend throughout the 2000s, is ultimately derived from German flecktarn and functionally based on the same principles.