/*
  cpt-city: pm/pm3d20 (cpt)

  Various gradients from Gnuplot: the original default pm3d
  colour gradient by Petr Mikulík from Masaryk University,
  nice rgb schemes listed in “help palette rgbformulae”
  and gradients from the pm3dcolors.dem demo script

  author: Petr Mikulik
  copyright: GPLv2
  year: 2006
  url: https://phillips.shef.ac.uk/pub/cpt-city/pm
*/
linear-gradient(
  0deg,
  rgb(  0,   0,   0)   0.000%,
  rgb( 94,   5,   0)   1.587%,
  rgb(117,  15,   0)   3.175%,
  rgb(132,  24,   0)   4.762%,
  rgb(143,  32,   0)   6.349%,
  rgb(153,  39,   0)   7.936%,
  rgb(161,  46,   0)   9.524%,
  rgb(168,  52,   0)  11.111%,
  rgb(174,  58,   0)  12.698%,
  rgb(179,  64,   0)  14.286%,
  rgb(185,  70,   0)  15.873%,
  rgb(189,  75,   0)  17.460%,
  rgb(194,  80,   0)  19.048%,
  rgb(198,  85,   0)  20.635%,
  rgb(201,  90,   0)  22.222%,
  rgb(205,  95,   0)  23.809%,
  rgb(208,  99,   0)  25.397%,
  rgb(211, 104,   0)  26.984%,
  rgb(214, 108,   0)  28.571%,
  rgb(217, 112,   0)  30.159%,
  rgb(220, 116,   0)  31.746%,
  rgb(222, 120,   0)  33.333%,
  rgb(225, 124,   0)  34.921%,
  rgb(227, 128,   0)  36.508%,
  rgb(229, 132,   0)  38.095%,
  rgb(231, 136,   0)  39.682%,
  rgb(234, 140,   0)  41.270%,
  rgb(236, 143,   0)  42.857%,
  rgb(237, 147,   0)  44.444%,
  rgb(239, 151,   0)  46.032%,
  rgb(241, 154,   0)  47.619%,
  rgb(243, 158,   0)  49.206%,
  rgb(244, 161,   0)  50.794%,
  rgb(246, 165,   0)  52.381%,
  rgb(247, 168,   0)  53.968%,
  rgb(249, 171,   0)  55.556%,
  rgb(250, 174,   0)  57.143%,
  rgb(252, 178,   0)  58.730%,
  rgb(253, 181,   0)  60.318%,
  rgb(254, 184,   0)  61.905%,
  rgb(255, 187,   0)  63.492%,
  rgb(255, 190,   0)  65.079%,
  rgb(255, 193,   0)  66.667%,
  rgb(255, 196,   0)  68.254%,
  rgb(255, 199,   0)  69.841%,
  rgb(255, 202,   0)  71.429%,
  rgb(255, 205,   0)  73.016%,
  rgb(255, 208,   0)  74.603%,
  rgb(255, 211,   0)  76.191%,
  rgb(255, 214,   0)  77.778%,
  rgb(255, 217,   0)  79.365%,
  rgb(255, 220,   0)  80.952%,
  rgb(255, 222,   0)  82.540%,
  rgb(255, 225,   0)  84.127%,
  rgb(255, 228,   0)  85.714%,
  rgb(255, 231,   0)  87.302%,
  rgb(255, 233,   0)  88.889%,
  rgb(255, 236,   0)  90.476%,
  rgb(255, 239,   0)  92.064%,
  rgb(255, 241,   0)  93.651%,
  rgb(255, 244,   0)  95.238%,
  rgb(255, 246,   0)  96.825%,
  rgb(255, 249,   0)  98.413%,
  rgb(255, 252,   0) 100.000%
);