/*
  cpt-city: ncl/posneg_1 (cpt)

  Colour-tables from NCL (NCAR Command Language), an open-source
  interpreted language designed specifically for scientific data
  analysis and visualisation

  author: University Corporation for Atmospheric Research (UCAR)
  copyright: Custom open-source
  year: 2011
  url: https://phillips.shef.ac.uk/pub/cpt-city/ncl
*/
linear-gradient(
  0deg,
  rgb(255, 255, 255)   0.000%,
  rgb(255, 255, 255)   5.263%,
  rgb(  0,   0,   0)   5.263%,
  rgb(  0,   0,   0)  10.526%,
  rgb(  0,   0,   0)  15.790%,
  rgb( 24,  24, 112)  15.790%,
  rgb( 24,  24, 112)  21.053%,
  rgb( 16,  78, 139)  21.053%,
  rgb( 16,  78, 139)  26.316%,
  rgb( 23, 116, 205)  26.316%,
  rgb( 23, 116, 205)  31.579%,
  rgb( 72, 118, 255)  31.579%,
  rgb( 72, 118, 255)  36.842%,
  rgb( 91, 172, 237)  36.842%,
  rgb( 91, 172, 237)  42.105%,
  rgb(173, 215, 230)  42.105%,
  rgb(173, 215, 230)  47.368%,
  rgb(209, 237, 237)  47.368%,
  rgb(209, 237, 237)  52.632%,
  rgb(230, 230, 250)  52.632%,
  rgb(230, 230, 250)  57.895%,
  rgb(255, 228, 180)  57.895%,
  rgb(255, 228, 180)  63.158%,
  rgb(243, 164,  96)  63.158%,
  rgb(243, 164,  96)  68.421%,
  rgb(237, 118,   0)  68.421%,
  rgb(237, 118,   0)  73.684%,
  rgb(210, 105,  30)  73.684%,
  rgb(210, 105,  30)  78.947%,
  rgb(255,   0,   0)  78.947%,
  rgb(255,   0,   0)  84.210%,
  rgb(237,   0,   0)  84.210%,
  rgb(237,   0,   0)  89.474%,
  rgb(205,   0,   0)  89.474%,
  rgb(205,   0,   0)  94.737%,
  rgb(139,   0,   0)  94.737%,
  rgb(139,   0,   0) 100.000%
);