// cpt-city: gacruxa/mccahon/mccahon-20 (svg)
//
// Gradients based on integer sequences and traditional Japanese
// colours, by US-based digital artist Gacruxa.
//
// author: Gacruxa
// copyright: CC BY 3.0
// year: 2014
// url: https://phillips.shef.ac.uk/pub/cpt-city/gacruxa/mccahon
#declare mccahon_20 =
color_map {
  [0.00000 color rgbf <0.4980,0.1922,0.0392,0.0000>]
  [0.03003 color rgbf <0.5373,0.2431,0.0824,0.0000>]
  [0.06006 color rgbf <0.5922,0.3216,0.1529,0.0000>]
  [0.08984 color rgbf <0.6588,0.4118,0.2314,0.0000>]
  [0.11987 color rgbf <0.7294,0.5098,0.3137,0.0000>]
  [0.14990 color rgbf <0.8000,0.6039,0.3961,0.0000>]
  [0.17993 color rgbf <0.8627,0.6863,0.4667,0.0000>]
  [0.20972 color rgbf <0.9098,0.7490,0.5176,0.0000>]
  [0.23975 color rgbf <0.9373,0.7804,0.5412,0.0000>]
  [0.24097 color rgbf <0.9412,0.7765,0.5294,0.0000>]
  [0.24243 color rgbf <0.9176,0.7294,0.4784,0.0000>]
  [0.24365 color rgbf <0.8863,0.6706,0.4157,0.0000>]
  [0.24487 color rgbf <0.8471,0.6039,0.3412,0.0000>]
  [0.24609 color rgbf <0.8039,0.5333,0.2706,0.0000>]
  [0.24756 color rgbf <0.7608,0.4588,0.1922,0.0000>]
  [0.24878 color rgbf <0.7333,0.4157,0.1490,0.0000>]
  [0.25000 color rgbf <0.7255,0.4000,0.1333,0.0000>]
  [0.28076 color rgbf <0.7333,0.4157,0.1490,0.0000>]
  [0.31152 color rgbf <0.7608,0.4549,0.1922,0.0000>]
  [0.34228 color rgbf <0.7961,0.5137,0.2510,0.0000>]
  [0.37305 color rgbf <0.8353,0.5765,0.3216,0.0000>]
  [0.40356 color rgbf <0.8745,0.6471,0.3922,0.0000>]
  [0.43433 color rgbf <0.9098,0.7059,0.4588,0.0000>]
  [0.46509 color rgbf <0.9333,0.7529,0.5098,0.0000>]
  [0.49585 color rgbf <0.9373,0.7804,0.5412,0.0000>]
  [0.49634 color rgbf <0.9216,0.7804,0.5490,0.0000>]
  [0.49683 color rgbf <0.8902,0.7686,0.5412,0.0000>]
  [0.49731 color rgbf <0.8510,0.7412,0.5255,0.0000>]
  [0.49805 color rgbf <0.7765,0.6902,0.4863,0.0000>]
  [0.49853 color rgbf <0.7294,0.6549,0.4588,0.0000>]
  [0.49902 color rgbf <0.6902,0.6275,0.4353,0.0000>]
  [0.49951 color rgbf <0.6627,0.6039,0.4196,0.0000>]
  [0.50000 color rgbf <0.6510,0.5961,0.4118,0.0000>]
  [0.53125 color rgbf <0.6627,0.6039,0.4157,0.0000>]
  [0.56226 color rgbf <0.6980,0.6235,0.4275,0.0000>]
  [0.59351 color rgbf <0.7451,0.6549,0.4471,0.0000>]
  [0.62476 color rgbf <0.7961,0.6863,0.4667,0.0000>]
  [0.65576 color rgbf <0.8510,0.7216,0.4902,0.0000>]
  [0.68701 color rgbf <0.8980,0.7490,0.5098,0.0000>]
  [0.71802 color rgbf <0.9294,0.7725,0.5294,0.0000>]
  [0.74927 color rgbf <0.9373,0.7804,0.5412,0.0000>]
  [0.74927 color rgbf <0.9373,0.7804,0.5412,0.0000>]
  [0.74951 color rgbf <0.8588,0.7608,0.5725,0.0000>]
  [0.74951 color rgbf <0.8588,0.7608,0.5725,0.0000>]
  [0.74976 color rgbf <0.7137,0.7059,0.5882,0.0000>]
  [0.74976 color rgbf <0.7137,0.7059,0.5882,0.0000>]
  [0.74976 color rgbf <0.7137,0.7059,0.5882,0.0000>]
  [0.75000 color rgbf <0.5922,0.6196,0.5490,0.0000>]
  [0.75000 color rgbf <0.5922,0.6196,0.5490,0.0000>]
  [0.78125 color rgbf <0.5686,0.5765,0.5059,0.0000>]
  [0.81250 color rgbf <0.5490,0.5216,0.4471,0.0000>]
  [0.84375 color rgbf <0.5333,0.4588,0.3725,0.0000>]
  [0.87500 color rgbf <0.5255,0.3961,0.2941,0.0000>]
  [0.90625 color rgbf <0.5137,0.3333,0.2157,0.0000>]
  [0.93750 color rgbf <0.5098,0.2745,0.1412,0.0000>]
  [0.96875 color rgbf <0.5020,0.2275,0.0824,0.0000>]
  [1.00000 color rgbf <0.4980,0.1922,0.0392,0.0000>]
}