/*
  cpt-city: gmt/GMT_seis (cpt)

  Palettes distributed with the Generic Mapping Tools (GMT)

  author: Paul Wessel, Walter Smith, Andreas Trawoeger
  copyright: GPLv2
  year: 2004, 2010
  url: https://phillips.shef.ac.uk/pub/cpt-city/gmt
*/
linear-gradient(
  0deg,
  rgb(170,   0,   0)   0.000%,
  rgb(255,   0,   0)  11.150%,
  rgb(255,  85,   0)  22.250%,
  rgb(255, 170,   0)  33.350%,
  rgb(255, 255,   0)  44.450%,
  rgb(255, 255,   0)  55.550%,
  rgb( 90, 255,  30)  66.650%,
  rgb(  0, 240, 110)  77.750%,
  rgb(  0,  80, 255)  88.850%,
  rgb(  0,   0, 205) 100.000%
);