// cpt-city: gacruxa/zurzach/zurzach-18 (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/zurzach
#declare zurzach_18 =
color_map {
  [0.00000 color rgbf <0.7412,0.7412,0.6353,0.0000>]
  [0.04272 color rgbf <0.7412,0.7412,0.6353,0.0000>]
  [0.08545 color rgbf <0.7412,0.7451,0.6392,0.0000>]
  [0.12817 color rgbf <0.7412,0.7490,0.6392,0.0000>]
  [0.17090 color rgbf <0.7412,0.7529,0.6431,0.0000>]
  [0.21338 color rgbf <0.7412,0.7529,0.6431,0.0000>]
  [0.25610 color rgbf <0.7412,0.7529,0.6431,0.0000>]
  [0.29883 color rgbf <0.7412,0.7490,0.6392,0.0000>]
  [0.34155 color rgbf <0.7412,0.7412,0.6353,0.0000>]
  [0.34228 color rgbf <0.7412,0.7255,0.6275,0.0000>]
  [0.34302 color rgbf <0.7412,0.7020,0.6118,0.0000>]
  [0.34375 color rgbf <0.7412,0.6784,0.5961,0.0000>]
  [0.34448 color rgbf <0.7412,0.6471,0.5804,0.0000>]
  [0.34497 color rgbf <0.7412,0.6275,0.5686,0.0000>]
  [0.34570 color rgbf <0.7412,0.6039,0.5529,0.0000>]
  [0.34644 color rgbf <0.7412,0.5804,0.5373,0.0000>]
  [0.34717 color rgbf <0.7412,0.5647,0.5294,0.0000>]
  [0.35278 color rgbf <0.7412,0.5569,0.5255,0.0000>]
  [0.35815 color rgbf <0.7412,0.5490,0.5216,0.0000>]
  [0.36377 color rgbf <0.7412,0.5490,0.5216,0.0000>]
  [0.36914 color rgbf <0.7412,0.5490,0.5216,0.0000>]
  [0.37476 color rgbf <0.7412,0.5529,0.5255,0.0000>]
  [0.38013 color rgbf <0.7412,0.5569,0.5255,0.0000>]
  [0.38574 color rgbf <0.7412,0.5608,0.5294,0.0000>]
  [0.39111 color rgbf <0.7412,0.5647,0.5294,0.0000>]
  [0.39185 color rgbf <0.7412,0.5725,0.5294,0.0000>]
  [0.39258 color rgbf <0.7412,0.5804,0.5294,0.0000>]
  [0.39331 color rgbf <0.7412,0.5922,0.5294,0.0000>]
  [0.39404 color rgbf <0.7412,0.6000,0.5294,0.0000>]
  [0.39453 color rgbf <0.7412,0.6078,0.5294,0.0000>]
  [0.39526 color rgbf <0.7412,0.6196,0.5294,0.0000>]
  [0.39600 color rgbf <0.7412,0.6275,0.5294,0.0000>]
  [0.39673 color rgbf <0.7412,0.6353,0.5294,0.0000>]
  [0.40234 color rgbf <0.7412,0.6392,0.5294,0.0000>]
  [0.40772 color rgbf <0.7451,0.6392,0.5294,0.0000>]
  [0.41333 color rgbf <0.7490,0.6353,0.5294,0.0000>]
  [0.41870 color rgbf <0.7529,0.6314,0.5294,0.0000>]
  [0.42432 color rgbf <0.7569,0.6314,0.5294,0.0000>]
  [0.42969 color rgbf <0.7569,0.6314,0.5294,0.0000>]
  [0.43530 color rgbf <0.7529,0.6314,0.5294,0.0000>]
  [0.44067 color rgbf <0.7412,0.6353,0.5294,0.0000>]
  [0.44141 color rgbf <0.7216,0.6431,0.5294,0.0000>]
  [0.44214 color rgbf <0.6941,0.6588,0.5294,0.0000>]
  [0.44287 color rgbf <0.6627,0.6745,0.5294,0.0000>]
  [0.44360 color rgbf <0.6314,0.6902,0.5294,0.0000>]
  [0.44409 color rgbf <0.6078,0.7020,0.5294,0.0000>]
  [0.44482 color rgbf <0.5765,0.7176,0.5294,0.0000>]
  [0.44556 color rgbf <0.5490,0.7333,0.5294,0.0000>]
  [0.44629 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.45288 color rgbf <0.5176,0.7451,0.5294,0.0000>]
  [0.45947 color rgbf <0.5059,0.7451,0.5255,0.0000>]
  [0.46582 color rgbf <0.4980,0.7451,0.5216,0.0000>]
  [0.47241 color rgbf <0.4980,0.7412,0.5176,0.0000>]
  [0.47900 color rgbf <0.4980,0.7373,0.5137,0.0000>]
  [0.48560 color rgbf <0.5020,0.7373,0.5137,0.0000>]
  [0.49194 color rgbf <0.5137,0.7373,0.5176,0.0000>]
  [0.49853 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.49902 color rgbf <0.5686,0.7529,0.5569,0.0000>]
  [0.49927 color rgbf <0.5922,0.7608,0.5725,0.0000>]
  [0.49976 color rgbf <0.6549,0.7843,0.6118,0.0000>]
  [0.50000 color rgbf <0.6863,0.7922,0.6353,0.0000>]
  [0.50049 color rgbf <0.7529,0.8157,0.6784,0.0000>]
  [0.50073 color rgbf <0.7843,0.8275,0.6980,0.0000>]
  [0.50122 color rgbf <0.8314,0.8431,0.7294,0.0000>]
  [0.50147 color rgbf <0.8471,0.8471,0.7412,0.0000>]
  [0.55688 color rgbf <0.8627,0.8510,0.7529,0.0000>]
  [0.61230 color rgbf <0.8784,0.8588,0.7608,0.0000>]
  [0.66772 color rgbf <0.8824,0.8588,0.7647,0.0000>]
  [0.72314 color rgbf <0.8863,0.8588,0.7686,0.0000>]
  [0.77856 color rgbf <0.8824,0.8588,0.7647,0.0000>]
  [0.83398 color rgbf <0.8784,0.8588,0.7608,0.0000>]
  [0.88940 color rgbf <0.8627,0.8510,0.7529,0.0000>]
  [0.94482 color rgbf <0.8471,0.8471,0.7412,0.0000>]
  [0.94531 color rgbf <0.8078,0.8353,0.7176,0.0000>]
  [0.94556 color rgbf <0.7843,0.8275,0.6980,0.0000>]
  [0.94605 color rgbf <0.7216,0.8039,0.6588,0.0000>]
  [0.94629 color rgbf <0.6863,0.7922,0.6353,0.0000>]
  [0.94678 color rgbf <0.6235,0.7725,0.5922,0.0000>]
  [0.94702 color rgbf <0.5922,0.7608,0.5725,0.0000>]
  [0.94751 color rgbf <0.5451,0.7451,0.5412,0.0000>]
  [0.94775 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.95337 color rgbf <0.5137,0.7373,0.5176,0.0000>]
  [0.95874 color rgbf <0.5020,0.7333,0.5137,0.0000>]
  [0.96436 color rgbf <0.4980,0.7333,0.5098,0.0000>]
  [0.96973 color rgbf <0.4980,0.7333,0.5098,0.0000>]
  [0.97534 color rgbf <0.5020,0.7373,0.5137,0.0000>]
  [0.98071 color rgbf <0.5059,0.7373,0.5176,0.0000>]
  [0.98633 color rgbf <0.5176,0.7412,0.5216,0.0000>]
  [0.99170 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.99268 color rgbf <0.5451,0.7412,0.5373,0.0000>]
  [0.99390 color rgbf <0.5765,0.7412,0.5529,0.0000>]
  [0.99487 color rgbf <0.6039,0.7412,0.5686,0.0000>]
  [0.99585 color rgbf <0.6353,0.7412,0.5804,0.0000>]
  [0.99683 color rgbf <0.6667,0.7412,0.5961,0.0000>]
  [0.99805 color rgbf <0.7020,0.7412,0.6157,0.0000>]
  [0.99902 color rgbf <0.7255,0.7412,0.6275,0.0000>]
  [1.00000 color rgbf <0.7412,0.7412,0.6353,0.0000>]
}