/*
  cpt-city: gacruxa/duart/duart-21 (svg)

  Gradients based on integer sequences and traditional Japanese
  colours, by US-based digital artist Gacruxa.

  author: Gacruxa
  copyright: CC BY 3.0
  year: 2014
  url: https://phillips.shef.ac.uk/pub/cpt-city/gacruxa/duart
*/
linear-gradient(
  0deg,
  rgb(  1,   1,   1)   0.000%,
  rgb(  4,   6,   6)   0.024%,
  rgb( 12,  22,  22)   0.073%,
  rgb( 17,  32,  32)   0.098%,
  rgb( 28,  52,  52)   0.146%,
  rgb( 33,  62,  62)   0.171%,
  rgb( 38,  72,  72)   0.195%,
  rgb( 46,  88,  88)   0.244%,
  rgb( 49,  93,  93)   0.269%,
  rgb( 52,  98,  98)   1.367%,
  rgb( 53, 102, 102)   2.466%,
  rgb( 55, 104, 104)   3.564%,
  rgb( 55, 105, 105)   4.688%,
  rgb( 55, 104, 104)   5.786%,
  rgb( 53, 102, 102)   6.885%,
  rgb( 52,  98,  98)   7.983%,
  rgb( 49,  93,  93)   9.082%,
  rgb( 45,  86,  86)   9.180%,
  rgb( 38,  73,  73)   9.302%,
  rgb( 32,  60,  60)   9.399%,
  rgb( 25,  47,  47)   9.497%,
  rgb( 18,  34,  34)   9.595%,
  rgb( 10,  18,  18)   9.717%,
  rgb(  5,   8,   8)   9.815%,
  rgb(  1,   1,   1)   9.912%,
  rgb(  0,   0,   0)  10.523%,
  rgb(  0,   0,   0)  11.157%,
  rgb(  0,   0,   0)  11.768%,
  rgb(  0,   0,   0)  12.402%,
  rgb(  0,   0,   0)  13.013%,
  rgb(  0,   0,   0)  13.623%,
  rgb(  0,   0,   0)  14.258%,
  rgb(  1,   1,   1)  14.868%,
  rgb( 31,  31,  31)  14.917%,
  rgb( 52,  52,  52)  14.941%,
  rgb(101, 101, 101)  14.990%,
  rgb(127, 127, 127)  15.015%,
  rgb(178, 178, 178)  15.063%,
  rgb(202, 202, 202)  15.088%,
  rgb(240, 240, 240)  15.137%,
  rgb(253, 253, 253)  15.161%,
  rgb(255, 255, 255)  15.723%,
  rgb(255, 255, 255)  16.260%,
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  rgb(231, 231, 231)  19.629%,
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  rgb(120, 120, 120)  19.849%,
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  rgb( 46,  88,  88)  25.317%,
  rgb( 49,  93,  93)  25.342%,
  rgb( 52,  98,  98)  26.489%,
  rgb( 54, 102, 102)  27.612%,
  rgb( 55, 104, 104)  28.760%,
  rgb( 55, 105, 105)  29.883%,
  rgb( 55, 104, 104)  31.030%,
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  rgb( 52,  98,  98)  33.301%,
  rgb( 49,  93,  93)  34.424%,
  rgb( 45,  85,  85)  34.497%,
  rgb( 39,  73,  73)  34.570%,
  rgb( 31,  59,  59)  34.644%,
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  rgb(  0,   0,   0)  35.547%,
  rgb(  0,   0,   0)  36.084%,
  rgb(  0,   0,   0)  36.645%,
  rgb(  0,   0,   0)  37.207%,
  rgb(  0,   0,   0)  37.744%,
  rgb(  0,   0,   0)  38.306%,
  rgb(  0,   0,   0)  38.843%,
  rgb(  1,   1,   1)  39.404%,
  rgb( 25,  25,  25)  39.477%,
  rgb( 58,  58,  58)  39.551%,
  rgb( 85,  85,  85)  39.600%,
  rgb(127, 127, 127)  39.673%,
  rgb(169, 169, 169)  39.746%,
  rgb(208, 208, 208)  39.819%,
  rgb(229, 229, 229)  39.868%,
  rgb(253, 253, 253)  39.941%,
  rgb(255, 255, 255)  40.601%,
  rgb(255, 255, 255)  41.260%,
  rgb(255, 255, 255)  41.919%,
  rgb(255, 255, 255)  42.578%,
  rgb(255, 255, 255)  43.213%,
  rgb(255, 255, 255)  43.872%,
  rgb(255, 255, 255)  44.531%,
  rgb(253, 253, 253)  45.190%,
  rgb(237, 240, 240)  45.288%,
  rgb(213, 222, 222)  45.386%,
  rgb(185, 200, 200)  45.483%,
  rgb(147, 170, 170)  45.605%,
  rgb(117, 146, 146)  45.703%,
  rgb( 89, 124, 124)  45.801%,
  rgb( 65, 106, 106)  45.898%,
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  rgb( 39,  85,  85)  47.144%,
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  rgb( 40,  86,  86)  51.685%,
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  rgb( 49,  93,  93)  55.102%,
  rgba( 49,  93,  93, 0.090) 100.000%
);