/*
  cpt-city: wkp/ice/wiki-ice-greenland (cpt)

  Subtle shades to depict the thickness of the Greenland
  ice sheet

  author: Eric Gaba (Sting)
  copyright: Attribution and share-alike required
  year: 2008
  url: https://phillips.shef.ac.uk/pub/cpt-city/wkp/ice
*/
linear-gradient(
  0deg,
  rgb(247, 253, 254)   0.000%,
  rgb(247, 253, 254)  30.986%,
  rgb(242, 248, 248)  30.986%,
  rgb(242, 248, 248)  46.635%,
  rgb(229, 240, 242)  46.635%,
  rgb(229, 240, 242)  62.285%,
  rgb(217, 231, 233)  62.285%,
  rgb(217, 231, 233)  77.934%,
  rgb(207, 225, 228)  77.934%,
  rgb(207, 225, 228)  93.584%,
  rgb(195, 219, 223)  93.584%,
  rgb(195, 219, 223) 100.000%
);