/*
  cpt-city: pm/pm3d07 (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, 255,   0)   0.000%,
  rgb(  0, 100,   0)  33.333%,
  rgb(255, 255,   0)  33.333%,
  rgb(200, 200,   0)  66.667%,
  rgb(255,   0,   0)  66.667%,
  rgb(139,   0,   0) 100.000%
);