/*
  cpt-city: nr/pdr/harris-pdr-09 (cpt)

  Schemes from Moses Harris’ coluor wheels in "The Natural System
  of Colours" (1766), recreated by Nicholas Rougeux 2025

  author: Nicholas Rougeux
  copyright: CC0 1.0
  year: 2025
  url: https://phillips.shef.ac.uk/pub/cpt-city/nr/pdr
*/
linear-gradient(
  0deg,
  rgb( 77, 157,  63)   0.000%,
  rgb( 77, 157,  63)  10.000%,
  rgb( 73, 143,  62)  10.000%,
  rgb( 73, 143,  62)  20.000%,
  rgb( 70, 130,  61)  20.000%,
  rgb( 70, 130,  61)  30.000%,
  rgb( 66, 121,  58)  30.000%,
  rgb( 66, 121,  58)  40.000%,
  rgb( 63, 105,  58)  40.000%,
  rgb( 63, 105,  58)  50.000%,
  rgb( 61,  93,  57)  50.000%,
  rgb( 61,  93,  57)  60.000%,
  rgb( 57,  83,  54)  60.000%,
  rgb( 57,  83,  54)  70.000%,
  rgb( 54,  72,  52)  70.000%,
  rgb( 54,  72,  52)  80.000%,
  rgb( 50,  61,  49)  80.000%,
  rgb( 50,  61,  49)  90.000%,
  rgb( 47,  52,  45)  90.000%,
  rgb( 47,  52,  45) 100.000%
);