// cpt-city: gacruxa/zurzach/zurzach-15 (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_15 =
color_map {
  [0.00000 color rgbf <0.8471,0.8471,0.7412,0.0000>]
  [0.00000 color rgbf <0.8471,0.8471,0.7412,0.0000>]
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  [0.00244 color rgbf <0.7765,0.7765,0.6706,0.0000>]
  [0.00439 color rgbf <0.7608,0.7608,0.6549,0.0000>]
  [0.00635 color rgbf <0.7490,0.7490,0.6431,0.0000>]
  [0.00830 color rgbf <0.7412,0.7412,0.6353,0.0000>]
  [0.01831 color rgbf <0.7373,0.7373,0.6314,0.0000>]
  [0.02832 color rgbf <0.7333,0.7373,0.6314,0.0000>]
  [0.03833 color rgbf <0.7333,0.7373,0.6314,0.0000>]
  [0.04834 color rgbf <0.7333,0.7412,0.6353,0.0000>]
  [0.05811 color rgbf <0.7373,0.7451,0.6392,0.0000>]
  [0.06811 color rgbf <0.7373,0.7451,0.6392,0.0000>]
  [0.07812 color rgbf <0.7412,0.7451,0.6392,0.0000>]
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  [0.08887 color rgbf <0.7412,0.7333,0.6275,0.0000>]
  [0.08960 color rgbf <0.7412,0.7176,0.6118,0.0000>]
  [0.09033 color rgbf <0.7412,0.7020,0.5961,0.0000>]
  [0.09106 color rgbf <0.7412,0.6863,0.5804,0.0000>]
  [0.09155 color rgbf <0.7412,0.6745,0.5686,0.0000>]
  [0.09229 color rgbf <0.7412,0.6588,0.5529,0.0000>]
  [0.09302 color rgbf <0.7412,0.6431,0.5373,0.0000>]
  [0.09375 color rgbf <0.7412,0.6353,0.5294,0.0000>]
  [0.10449 color rgbf <0.7412,0.6314,0.5255,0.0000>]
  [0.11499 color rgbf <0.7412,0.6314,0.5216,0.0000>]
  [0.12573 color rgbf <0.7412,0.6314,0.5216,0.0000>]
  [0.13648 color rgbf <0.7412,0.6314,0.5216,0.0000>]
  [0.14697 color rgbf <0.7412,0.6353,0.5255,0.0000>]
  [0.15771 color rgbf <0.7412,0.6392,0.5255,0.0000>]
  [0.16821 color rgbf <0.7412,0.6392,0.5294,0.0000>]
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  [0.17969 color rgbf <0.7412,0.6275,0.5294,0.0000>]
  [0.18042 color rgbf <0.7412,0.6196,0.5294,0.0000>]
  [0.18115 color rgbf <0.7412,0.6078,0.5294,0.0000>]
  [0.18189 color rgbf <0.7412,0.6000,0.5294,0.0000>]
  [0.18237 color rgbf <0.7412,0.5922,0.5294,0.0000>]
  [0.18311 color rgbf <0.7412,0.5804,0.5294,0.0000>]
  [0.18384 color rgbf <0.7412,0.5725,0.5294,0.0000>]
  [0.18457 color rgbf <0.7412,0.5647,0.5294,0.0000>]
  [0.19434 color rgbf <0.7412,0.5608,0.5294,0.0000>]
  [0.20386 color rgbf <0.7451,0.5569,0.5294,0.0000>]
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  [0.22314 color rgbf <0.7529,0.5490,0.5294,0.0000>]
  [0.23291 color rgbf <0.7569,0.5490,0.5294,0.0000>]
  [0.24243 color rgbf <0.7569,0.5490,0.5294,0.0000>]
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  [0.26318 color rgbf <0.6941,0.6039,0.5294,0.0000>]
  [0.26392 color rgbf <0.6627,0.6275,0.5294,0.0000>]
  [0.26465 color rgbf <0.6314,0.6588,0.5294,0.0000>]
  [0.26514 color rgbf <0.6078,0.6784,0.5294,0.0000>]
  [0.26587 color rgbf <0.5765,0.7020,0.5294,0.0000>]
  [0.26660 color rgbf <0.5490,0.7255,0.5294,0.0000>]
  [0.26733 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.27759 color rgbf <0.5176,0.7490,0.5294,0.0000>]
  [0.28809 color rgbf <0.5059,0.7529,0.5255,0.0000>]
  [0.29834 color rgbf <0.4980,0.7490,0.5216,0.0000>]
  [0.30859 color rgbf <0.4980,0.7451,0.5176,0.0000>]
  [0.31885 color rgbf <0.4980,0.7412,0.5137,0.0000>]
  [0.32935 color rgbf <0.5020,0.7373,0.5137,0.0000>]
  [0.33960 color rgbf <0.5137,0.7373,0.5176,0.0000>]
  [0.34985 color rgbf <0.5294,0.7412,0.5294,0.0000>]
  [0.35010 color rgbf <0.5490,0.7490,0.5412,0.0000>]
  [0.35059 color rgbf <0.6000,0.7647,0.5765,0.0000>]
  [0.35083 color rgbf <0.6353,0.7765,0.6000,0.0000>]
  [0.35132 color rgbf <0.7059,0.8000,0.6471,0.0000>]
  [0.35156 color rgbf <0.7412,0.8118,0.6706,0.0000>]
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  [0.91919 color rgbf <0.8510,0.8471,0.7412,0.0000>]
  [1.00000 color rgbf <0.8471,0.8471,0.7412,0.0000>]
}