This shader uses noise() to chose a color from a fixed set. The range of possible return value from noise() are divided into parts of equal size and each part is assigned a color. The size of the parts are dependent on the number of colors.
ambient is a value between 0.0 and 1.0 which determines how much of the base color of a surface that is visible when it is not illuminated by any light source.
specular is a value between 0.0 and 1.0 which is the fraction of color specularly reflected.
c3 is the shininess of the surface where 0.0 is the most dull and 1.0 is the most shiny.
scale describes how much the texture coordinates should be scaled before applying the texture. The larger the scaling, the smaller the area of the texture associated with a given area of the surface. A large number results in a very fine pattern, a small number yields a coarse pattern.
colorlist is a list contain one or more colors. Each color is a list containing the red, green and blue values for the surface. Each being a number between 0.0 and 1.0.
opacity describes the opacity of a surface. 0.0 means totally transparent, 1.0 means totally opaque. May be a list of red, green and blue opacity values or a single value to be used for all color channels. Optional, default is 1.0.