/*
  cpt-city: pd/astro/aurora_borealis (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( 88,  49,  84)   0.000%,
  rgb( 92,  51,  86)   2.080%,
  rgb( 96,  53,  88)   4.170%,
  rgb( 98,  54,  90)   6.250%,
  rgb(100,  54,  91)   8.330%,
  rgb(104,  57,  94)  10.420%,
  rgb(108,  59,  97)  12.500%,
  rgb(111,  61,  98)  14.580%,
  rgb(115,  62, 100)  16.670%,
  rgb(119,  63, 102)  18.750%,
  rgb(123,  64, 104)  20.830%,
  rgb(128,  68, 106)  22.920%,
  rgb(132,  72, 109)  25.000%,
  rgb(135,  73, 110)  27.080%,
  rgb(137,  73, 110)  29.170%,
  rgb(141,  73, 110)  31.250%,
  rgb(145,  73, 110)  33.330%,
  rgb(152,  78, 116)  35.420%,
  rgb(159,  83, 122)  37.500%,
  rgb(162,  82, 120)  39.580%,
  rgb(165,  81, 119)  41.670%,
  rgb(169,  84, 120)  43.750%,
  rgb(173,  86, 122)  45.830%,
  rgb(176,  86, 121)  47.920%,
  rgb(179,  86, 120)  50.000%,
  rgb(183,  89, 122)  52.080%,
  rgb(186,  91, 125)  54.170%,
  rgb(192,  95, 127)  56.250%,
  rgb(198,  99, 129)  58.330%,
  rgb(201, 106, 132)  60.420%,
  rgb(204, 112, 136)  62.500%,
  rgb(207, 120, 139)  64.580%,
  rgb(210, 129, 143)  66.670%,
  rgb(210, 140, 147)  68.750%,
  rgb(211, 152, 152)  70.830%,
  rgb(208, 167, 151)  72.920%,
  rgb(204, 183, 150)  75.000%,
  rgb(197, 198, 146)  77.080%,
  rgb(190, 212, 142)  79.170%,
  rgb(178, 220, 136)  81.250%,
  rgb(167, 227, 131)  83.330%,
  rgb(158, 230, 124)  85.420%,
  rgb(150, 233, 117)  87.500%,
  rgb(137, 226, 108)  89.580%,
  rgb(124, 219,  99)  91.670%,
  rgb(116, 181,  99)  93.750%,
  rgb(107, 143, 100)  95.830%,
  rgb(104, 118, 102)  97.920%,
  rgb(101,  94, 103) 100.000%
);