// cpt-city: gacruxa/mccahon/mccahon-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/mccahon
#declare mccahon_15 =
color_map {
  [0.00000 color rgbf <0.7686,0.3255,0.0510,0.0000>]
  [0.30298 color rgbf <0.9020,0.7059,0.5765,0.0000>]
  [0.30566 color rgbf <0.7686,0.3255,0.0510,0.0000>]
  [0.34985 color rgbf <0.8392,0.5765,0.1176,0.0000>]
  [0.49316 color rgbf <0.5804,0.0588,0.0000,0.0000>]
  [0.49585 color rgbf <0.8392,0.5765,0.1176,0.0000>]
  [0.59790 color rgbf <0.8392,0.5765,0.1176,0.0000>]
  [0.60059 color rgbf <0.8392,0.5765,0.1176,1.0000>]
  [0.60327 color rgbf <0.8392,0.5765,0.1176,1.0000>]
  [0.65064 color rgbf <0.1490,0.1137,0.1608,1.0000>]
  [0.65576 color rgbf <0.0745,0.0667,0.1647,0.0000>]
  [0.66113 color rgbf <0.0000,0.0157,0.1725,0.0003>]
  [1.00000 color rgbf <0.0000,0.0157,0.1725,0.0200>]
}