/*
  cpt-city: ds9/a (cpt)

  The palettes used in the DS9 astronomical data visualization tool
  by William Joye of the Smithsonian Astrophysical Observatory

  author: William Joye
  copyright: GPLv2
  year: 2010
  url: https://phillips.shef.ac.uk/pub/cpt-city/ds9
*/
linear-gradient(
  0deg,
  rgb(  0,   0,   0)   0.000%,
  rgb(  0, 128,   0)  12.500%,
  rgb(  0, 255, 128)  25.000%,
  rgb(255,   0, 255)  50.000%,
  rgb(255,   0, 128)  64.000%,
  rgb(255,   0,   0)  77.000%,
  rgb(255, 255,   0) 100.000%
);