/*
  cpt-city: km/purple-orange-d09 (cpt)

  Diverging Color Maps for Scientific Visualization, Kenneth
  Moreland. ISVC '09: Proceedings of the 5th International
  Symposium on Advances in Visual Computing: Part II pp, 92-103

  author: Kenneth Moreland
  copyright: Public domain
  year: 2012
  url: https://phillips.shef.ac.uk/pub/cpt-city/km
*/
linear-gradient(
  0deg,
  rgb(133,  90, 167)   0.000%,
  rgb(133,  90, 167)  11.111%,
  rgb(176, 116, 178)  11.111%,
  rgb(176, 116, 178)  22.222%,
  rgb(209, 147, 190)  22.222%,
  rgb(209, 147, 190)  33.333%,
  rgb(226, 183, 204)  33.333%,
  rgb(226, 183, 204)  44.444%,
  rgb(223, 223, 223)  44.444%,
  rgb(223, 223, 223)  55.556%,
  rgb(244, 209, 159)  55.556%,
  rgb(244, 209, 159)  66.667%,
  rgb(249, 181, 101)  66.667%,
  rgb(249, 181, 101)  77.778%,
  rgb(237, 144,  54)  77.778%,
  rgb(237, 144,  54)  88.889%,
  rgb(211, 105,  23)  88.889%,
  rgb(211, 105,  23) 100.000%
);