/*
  cpt-city: gery/seismic (cpt)

  A scheme for amplitude values from seismic data, created with
  GMT from a grid file of amplitude values from a SEG-Y file

  author: Gery
  copyright: Public domain
  year: 2011
  url: https://phillips.shef.ac.uk/pub/cpt-city/gery
*/
linear-gradient(
  0deg,
  rgb(255,  41,  41)   0.000%,
  rgb(255,  41,  41)  16.032%,
  rgb(255, 103, 103)  16.032%,
  rgb(255, 103, 103)  24.302%,
  rgb(255, 138, 138)  24.302%,
  rgb(255, 138, 138)  29.624%,
  rgb(255, 161, 161)  29.624%,
  rgb(255, 161, 161)  33.421%,
  rgb(255, 178, 178)  33.421%,
  rgb(255, 178, 178)  36.343%,
  rgb(255, 191, 191)  36.343%,
  rgb(255, 191, 191)  38.728%,
  rgb(255, 203, 203)  38.728%,
  rgb(255, 203, 203)  40.761%,
  rgb(255, 212, 212)  40.761%,
  rgb(255, 212, 212)  42.562%,
  rgb(255, 221, 221)  42.562%,
  rgb(255, 221, 221)  44.206%,
  rgb(255, 229, 229)  44.206%,
  rgb(255, 229, 229)  45.739%,
  rgb(255, 237, 237)  45.739%,
  rgb(255, 237, 237)  47.191%,
  rgb(255, 244, 244)  47.191%,
  rgb(255, 244, 244)  48.606%,
  rgb(255, 251, 251)  48.606%,
  rgb(255, 251, 251)  49.945%,
  rgb(255, 255, 255)  49.945%,
  rgb(255, 255, 255)  49.959%,
  rgb(252, 252, 255)  49.959%,
  rgb(252, 252, 255)  51.321%,
  rgb(245, 245, 255)  51.321%,
  rgb(245, 245, 255)  52.733%,
  rgb(237, 237, 255)  52.733%,
  rgb(237, 237, 255)  54.192%,
  rgb(230, 230, 255)  54.192%,
  rgb(230, 230, 255)  55.725%,
  rgb(222, 222, 255)  55.725%,
  rgb(222, 222, 255)  57.377%,
  rgb(213, 213, 255)  57.377%,
  rgb(213, 213, 255)  59.190%,
  rgb(203, 203, 255)  59.190%,
  rgb(203, 203, 255)  61.241%,
  rgb(192, 192, 255)  61.241%,
  rgb(192, 192, 255)  63.642%,
  rgb(178, 178, 255)  63.642%,
  rgb(178, 178, 255)  66.584%,
  rgb(161, 161, 255)  66.584%,
  rgb(161, 161, 255)  70.433%,
  rgb(137, 137, 255)  70.433%,
  rgb(137, 137, 255)  75.848%,
  rgb(102, 102, 255)  75.848%,
  rgb(102, 102, 255)  84.166%,
  rgb( 40,  40, 255)  84.166%,
  rgb( 40,  40, 255) 100.000%
);