/*
  cpt-city: pd/astro/mars_sand_dunes02 (cpt)

  Gradients from photographs

  author: Piecrust Design
  copyright: Public domain
  year: 2007
  url: https://phillips.shef.ac.uk/pub/cpt-city/pd/astro
*/
linear-gradient(
  0deg,
  rgb(142, 147, 150)   0.000%,
  rgb(139, 144, 146)   2.080%,
  rgb(136, 140, 142)   4.170%,
  rgb(139, 142, 143)   6.250%,
  rgb(142, 144, 144)   8.330%,
  rgb(152, 154, 154)  10.420%,
  rgb(162, 164, 164)  12.500%,
  rgb(165, 167, 165)  14.580%,
  rgb(168, 170, 166)  16.670%,
  rgb(166, 168, 165)  18.750%,
  rgb(163, 165, 165)  20.830%,
  rgb(159, 161, 161)  22.920%,
  rgb(154, 157, 156)  25.000%,
  rgb(143, 147, 149)  27.080%,
  rgb(132, 137, 141)  29.170%,
  rgb(129, 135, 137)  31.250%,
  rgb(127, 132, 134)  33.330%,
  rgb(128, 131, 132)  35.420%,
  rgb(130, 131, 131)  37.500%,
  rgb(136, 136, 134)  39.580%,
  rgb(142, 141, 138)  41.670%,
  rgb(129, 128, 126)  43.750%,
  rgb(116, 116, 114)  45.830%,
  rgb(132, 134, 134)  47.920%,
  rgb(147, 151, 154)  50.000%,
  rgb(121, 129, 137)  52.080%,
  rgb( 95, 107, 120)  54.170%,
  rgb( 88, 100, 115)  56.250%,
  rgb( 81,  94, 111)  58.330%,
  rgb( 77,  90, 108)  60.420%,
  rgb( 74,  87, 105)  62.500%,
  rgb( 71,  85, 104)  64.580%,
  rgb( 69,  83, 102)  66.670%,
  rgb( 70,  85, 104)  68.750%,
  rgb( 71,  87, 106)  70.830%,
  rgb( 73,  90, 111)  72.920%,
  rgb( 76,  93, 116)  75.000%,
  rgb( 78,  96, 120)  77.080%,
  rgb( 80,  99, 123)  79.170%,
  rgb( 82, 100, 122)  81.250%,
  rgb( 84, 101, 121)  83.330%,
  rgb( 82,  99, 120)  85.420%,
  rgb( 80,  98, 119)  87.500%,
  rgb( 81,  98, 116)  89.580%,
  rgb( 83,  97, 113)  91.670%,
  rgb( 82,  95, 111)  93.750%,
  rgb( 81,  94, 109)  95.830%,
  rgb( 80,  92, 106)  97.920%,
  rgb( 79,  90, 104) 100.000%
);