/*
  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)   5.556%,
  rgb(  0,   0,   0)   5.556%,
  rgb(  0,   0,   0)  11.111%,
  rgb(  0,   0,   0)  16.667%,
  rgb( 24,  24, 112)  16.667%,
  rgb( 24,  24, 112)  22.222%,
  rgb( 16,  78, 139)  22.222%,
  rgb( 16,  78, 139)  27.778%,
  rgb( 23, 116, 205)  27.778%,
  rgb( 23, 116, 205)  33.333%,
  rgb( 72, 118, 255)  33.333%,
  rgb( 72, 118, 255)  38.889%,
  rgb( 91, 172, 237)  38.889%,
  rgb( 91, 172, 237)  44.444%,
  rgb(173, 215, 230)  44.444%,
  rgb(173, 215, 230)  50.000%,
  rgb(209, 237, 237)  50.000%,
  rgb(209, 237, 237)  55.556%,
  rgb(230, 230, 250)  55.556%,
  rgb(230, 230, 250)  61.111%,
  rgb(255, 228, 180)  61.111%,
  rgb(255, 228, 180)  66.667%,
  rgb(243, 164,  96)  66.667%,
  rgb(243, 164,  96)  72.222%,
  rgb(237, 118,   0)  72.222%,
  rgb(237, 118,   0)  77.778%,
  rgb(210, 105,  30)  77.778%,
  rgb(210, 105,  30)  83.333%,
  rgb(255,   0,   0)  83.333%,
  rgb(255,   0,   0)  88.889%,
  rgb(237,   0,   0)  88.889%,
  rgb(237,   0,   0)  94.444%,
  rgb(205,   0,   0)  94.444%,
  rgb(205,   0,   0) 100.000%
);