/*
  cpt-city: tl/power-0.80 (ggr)

  Nonlinear greyscales

  author: Thomas Lotze
  copyright: Free to use
  year: 2004
  url: https://phillips.shef.ac.uk/pub/cpt-city/tl
*/
linear-gradient(
  0deg,
  rgb(255, 255, 255)   0.000%,
  rgba(255, 255, 255, 0.998)   0.490%,
  rgba(255, 255, 255, 0.996)   0.979%,
  rgba(255, 255, 255, 0.992)   0.979%,
  rgba(255, 255, 255, 0.990)   1.468%,
  rgba(255, 255, 255, 0.988)   1.957%,
  rgba(255, 255, 255, 0.984)   1.957%,
  rgba(255, 255, 255, 0.982)   2.445%,
  rgba(255, 255, 255, 0.980)   2.933%,
  rgba(255, 255, 255, 0.977)   2.933%,
  rgba(255, 255, 255, 0.975)   3.420%,
  rgba(255, 255, 255, 0.973)   3.906%,
  rgba(255, 255, 255, 0.969)   3.906%,
  rgba(255, 255, 255, 0.967)   4.392%,
  rgba(255, 255, 255, 0.965)   4.878%,
  rgba(255, 255, 255, 0.961)   4.878%,
  rgba(255, 255, 255, 0.959)   5.363%,
  rgba(255, 255, 255, 0.957)   5.847%,
  rgba(255, 255, 255, 0.953)   5.847%,
  rgba(255, 255, 255, 0.951)   6.331%,
  rgba(255, 255, 255, 0.949)   6.815%,
  rgba(255, 255, 255, 0.945)   6.815%,
  rgba(255, 255, 255, 0.943)   7.298%,
  rgba(255, 255, 255, 0.941)   7.781%,
  rgba(255, 255, 255, 0.937)   7.781%,
  rgba(255, 255, 255, 0.935)   8.263%,
  rgba(255, 255, 255, 0.933)   8.744%,
  rgba(255, 255, 255, 0.929)   8.744%,
  rgba(255, 255, 255, 0.927)   9.225%,
  rgba(255, 255, 255, 0.925)   9.706%,
  rgba(255, 255, 255, 0.922)   9.706%,
  rgba(255, 255, 255, 0.920)  10.186%,
  rgba(255, 255, 255, 0.918)  10.665%,
  rgba(255, 255, 255, 0.914)  10.665%,
  rgba(255, 255, 255, 0.912)  11.144%,
  rgba(255, 255, 255, 0.910)  11.623%,
  rgba(255, 255, 255, 0.906)  11.623%,
  rgba(255, 255, 255, 0.904)  12.101%,
  rgba(255, 255, 255, 0.902)  12.578%,
  rgba(255, 255, 255, 0.898)  12.578%,
  rgba(255, 255, 255, 0.896)  13.055%,
  rgba(255, 255, 255, 0.894)  13.532%,
  rgba(255, 255, 255, 0.890)  13.532%,
  rgba(255, 255, 255, 0.888)  14.008%,
  rgba(255, 255, 255, 0.886)  14.483%,
  rgba(255, 255, 255, 0.882)  14.483%,
  rgba(255, 255, 255, 0.880)  14.958%,
  rgba(255, 255, 255, 0.878)  15.432%,
  rgba(255, 255, 255, 0.875)  15.432%,
  rgba(255, 255, 255, 0.873)  15.906%,
  rgba(255, 255, 255, 0.871)  16.379%,
  rgba(255, 255, 255, 0.867)  16.379%,
  rgba(255, 255, 255, 0.865)  16.852%,
  rgba(255, 255, 255, 0.863)  17.324%,
  rgba(255, 255, 255, 0.859)  17.324%,
  rgba(255, 255, 255, 0.857)  17.796%,
  rgba(255, 255, 255, 0.855)  18.267%,
  rgba(255, 255, 255, 0.851)  18.267%,
  rgba(255, 255, 255, 0.849)  18.737%,
  rgba(255, 255, 255, 0.847)  19.207%,
  rgba(255, 255, 255, 0.843)  19.207%,
  rgba(255, 255, 255, 0.841)  19.677%,
  rgba(255, 255, 255, 0.839)  20.145%,
  rgba(255, 255, 255, 0.835)  20.145%,
  rgba(255, 255, 255, 0.833)  20.614%,
  rgba(255, 255, 255, 0.831)  21.082%,
  rgba(255, 255, 255, 0.828)  21.082%,
  rgba(255, 255, 255, 0.826)  21.549%,
  rgba(255, 255, 255, 0.824)  22.016%,
  rgba(255, 255, 255, 0.820)  22.016%,
  rgba(255, 255, 255, 0.818)  22.482%,
  rgba(255, 255, 255, 0.816)  22.947%,
  rgba(255, 255, 255, 0.812)  22.947%,
  rgba(255, 255, 255, 0.810)  23.412%,
  rgba(255, 255, 255, 0.808)  23.877%,
  rgba(255, 255, 255, 0.804)  23.877%,
  rgba(255, 255, 255, 0.802)  24.341%,
  rgba(255, 255, 255, 0.800)  24.804%,
  rgba(255, 255, 255, 0.796)  24.804%,
  rgba(255, 255, 255, 0.794)  25.267%,
  rgba(255, 255, 255, 0.792)  25.729%,
  rgba(255, 255, 255, 0.788)  25.729%,
  rgba(255, 255, 255, 0.786)  26.191%,
  rgba(255, 255, 255, 0.784)  26.651%,
  rgba(255, 255, 255, 0.780)  26.651%,
  rgba(255, 255, 255, 0.778)  27.112%,
  rgba(255, 255, 255, 0.776)  27.572%,
  rgba(255, 255, 255, 0.772)  27.572%,
  rgba(255, 255, 255, 0.771)  28.031%,
  rgba(255, 255, 255, 0.769)  28.490%,
  rgba(255, 255, 255, 0.765)  28.490%,
  rgba(255, 255, 255, 0.763)  28.948%,
  rgba(255, 255, 255, 0.761)  29.405%,
  rgba(255, 255, 255, 0.757)  29.405%,
  rgba(255, 255, 255, 0.755)  29.862%,
  rgba(255, 255, 255, 0.753)  30.319%,
  rgba(255, 255, 255, 0.749)  30.319%,
  rgba(255, 255, 255, 0.747)  30.774%,
  rgba(255, 255, 255, 0.745)  31.230%,
  rgba(255, 255, 255, 0.741)  31.230%,
  rgba(255, 255, 255, 0.739)  31.684%,
  rgba(255, 255, 255, 0.737)  32.138%,
  rgba(255, 255, 255, 0.733)  32.138%,
  rgba(255, 255, 255, 0.731)  32.591%,
  rgba(255, 255, 255, 0.729)  33.044%,
  rgba(255, 255, 255, 0.726)  33.044%,
  rgba(255, 255, 255, 0.724)  33.496%,
  rgba(255, 255, 255, 0.722)  33.948%,
  rgba(255, 255, 255, 0.718)  33.948%,
  rgba(255, 255, 255, 0.716)  34.398%,
  rgba(255, 255, 255, 0.714)  34.849%,
  rgba(255, 255, 255, 0.710)  34.849%,
  rgba(255, 255, 255, 0.708)  35.298%,
  rgba(255, 255, 255, 0.706)  35.747%,
  rgba(255, 255, 255, 0.702)  35.747%,
  rgba(255, 255, 255, 0.700)  36.196%,
  rgba(255, 255, 255, 0.698)  36.644%,
  rgba(255, 255, 255, 0.694)  36.644%,
  rgba(255, 255, 255, 0.692)  37.091%,
  rgba(255, 255, 255, 0.690)  37.537%,
  rgba(255, 255, 255, 0.686)  37.537%,
  rgba(255, 255, 255, 0.684)  37.983%,
  rgba(255, 255, 255, 0.682)  38.428%,
  rgba(255, 255, 255, 0.678)  38.428%,
  rgba(255, 255, 255, 0.676)  38.873%,
  rgba(255, 255, 255, 0.674)  39.317%,
  rgba(255, 255, 255, 0.671)  39.317%,
  rgba(255, 255, 255, 0.669)  39.760%,
  rgba(255, 255, 255, 0.667)  40.203%,
  rgba(255, 255, 255, 0.663)  40.203%,
  rgba(255, 255, 255, 0.661)  40.644%,
  rgba(255, 255, 255, 0.659)  41.086%,
  rgba(255, 255, 255, 0.655)  41.086%,
  rgba(255, 255, 255, 0.653)  41.526%,
  rgba(255, 255, 255, 0.651)  41.966%,
  rgba(255, 255, 255, 0.647)  41.966%,
  rgba(255, 255, 255, 0.645)  42.406%,
  rgba(255, 255, 255, 0.643)  42.844%,
  rgba(255, 255, 255, 0.639)  42.844%,
  rgba(255, 255, 255, 0.637)  43.282%,
  rgba(255, 255, 255, 0.635)  43.720%,
  rgba(255, 255, 255, 0.631)  43.720%,
  rgba(255, 255, 255, 0.629)  44.156%,
  rgba(255, 255, 255, 0.627)  44.592%,
  rgba(255, 255, 255, 0.624)  44.592%,
  rgba(255, 255, 255, 0.622)  45.027%,
  rgba(255, 255, 255, 0.620)  45.462%,
  rgba(255, 255, 255, 0.616)  45.462%,
  rgba(255, 255, 255, 0.614)  45.896%,
  rgba(255, 255, 255, 0.612)  46.329%,
  rgba(255, 255, 255, 0.608)  46.329%,
  rgba(255, 255, 255, 0.606)  46.761%,
  rgba(255, 255, 255, 0.604)  47.193%,
  rgba(255, 255, 255, 0.600)  47.193%,
  rgba(255, 255, 255, 0.598)  47.624%,
  rgba(255, 255, 255, 0.596)  48.055%,
  rgba(255, 255, 255, 0.592)  48.055%,
  rgba(255, 255, 255, 0.590)  48.484%,
  rgba(255, 255, 255, 0.588)  48.913%,
  rgba(255, 255, 255, 0.584)  48.913%,
  rgba(255, 255, 255, 0.582)  49.342%,
  rgba(255, 255, 255, 0.580)  49.769%,
  rgba(255, 255, 255, 0.577)  49.769%,
  rgba(255, 255, 255, 0.575)  50.196%,
  rgba(255, 255, 255, 0.573)  50.622%,
  rgba(255, 255, 255, 0.569)  50.622%,
  rgba(255, 255, 255, 0.567)  51.047%,
  rgba(255, 255, 255, 0.565)  51.472%,
  rgba(255, 255, 255, 0.561)  51.472%,
  rgba(255, 255, 255, 0.559)  51.896%,
  rgba(255, 255, 255, 0.557)  52.319%,
  rgba(255, 255, 255, 0.553)  52.319%,
  rgba(255, 255, 255, 0.551)  52.741%,
  rgba(255, 255, 255, 0.549)  53.163%,
  rgba(255, 255, 255, 0.545)  53.163%,
  rgba(255, 255, 255, 0.543)  53.583%,
  rgba(255, 255, 255, 0.541)  54.003%,
  rgba(255, 255, 255, 0.537)  54.003%,
  rgba(255, 255, 255, 0.535)  54.423%,
  rgba(255, 255, 255, 0.533)  54.841%,
  rgba(255, 255, 255, 0.529)  54.841%,
  rgba(255, 255, 255, 0.527)  55.259%,
  rgba(255, 255, 255, 0.525)  55.676%,
  rgba(255, 255, 255, 0.522)  55.676%,
  rgba(255, 255, 255, 0.520)  56.092%,
  rgba(255, 255, 255, 0.518)  56.508%,
  rgba(255, 255, 255, 0.514)  56.508%,
  rgba(255, 255, 255, 0.512)  56.922%,
  rgba(255, 255, 255, 0.510)  57.336%,
  rgba(255, 255, 255, 0.506)  57.336%,
  rgba(255, 255, 255, 0.504)  57.749%,
  rgba(255, 255, 255, 0.502)  58.161%,
  rgba(255, 255, 255, 0.498)  58.161%,
  rgba(255, 255, 255, 0.496)  58.573%,
  rgba(255, 255, 255, 0.494)  58.983%,
  rgba(255, 255, 255, 0.490)  58.983%,
  rgba(255, 255, 255, 0.488)  59.393%,
  rgba(255, 255, 255, 0.486)  59.802%,
  rgba(255, 255, 255, 0.482)  59.802%,
  rgba(255, 255, 255, 0.480)  60.210%,
  rgba(255, 255, 255, 0.478)  60.617%,
  rgba(255, 255, 255, 0.474)  60.617%,
  rgba(255, 255, 255, 0.472)  61.024%,
  rgba(255, 255, 255, 0.471)  61.429%,
  rgba(255, 255, 255, 0.467)  61.429%,
  rgba(255, 255, 255, 0.465)  61.834%,
  rgba(255, 255, 255, 0.463)  62.238%,
  rgba(255, 255, 255, 0.459)  62.238%,
  rgba(255, 255, 255, 0.457)  62.641%,
  rgba(255, 255, 255, 0.455)  63.043%,
  rgba(255, 255, 255, 0.451)  63.043%,
  rgba(255, 255, 255, 0.449)  63.444%,
  rgba(255, 255, 255, 0.447)  63.845%,
  rgba(255, 255, 255, 0.443)  63.845%,
  rgba(255, 255, 255, 0.441)  64.244%,
  rgba(255, 255, 255, 0.439)  64.643%,
  rgba(255, 255, 255, 0.435)  64.643%,
  rgba(255, 255, 255, 0.433)  65.040%,
  rgba(255, 255, 255, 0.431)  65.437%,
  rgba(255, 255, 255, 0.427)  65.437%,
  rgba(255, 255, 255, 0.425)  65.833%,
  rgba(255, 255, 255, 0.423)  66.228%,
  rgba(255, 255, 255, 0.420)  66.228%,
  rgba(255, 255, 255, 0.418)  66.622%,
  rgba(255, 255, 255, 0.416)  67.015%,
  rgba(255, 255, 255, 0.412)  67.015%,
  rgba(255, 255, 255, 0.410)  67.408%,
  rgba(255, 255, 255, 0.408)  67.799%,
  rgba(255, 255, 255, 0.404)  67.799%,
  rgba(255, 255, 255, 0.402)  68.189%,
  rgba(255, 255, 255, 0.400)  68.579%,
  rgba(255, 255, 255, 0.396)  68.579%,
  rgba(255, 255, 255, 0.394)  68.967%,
  rgba(255, 255, 255, 0.392)  69.354%,
  rgba(255, 255, 255, 0.388)  69.354%,
  rgba(255, 255, 255, 0.386)  69.741%,
  rgba(255, 255, 255, 0.384)  70.126%,
  rgba(255, 255, 255, 0.380)  70.126%,
  rgba(255, 255, 255, 0.378)  70.511%,
  rgba(255, 255, 255, 0.377)  70.894%,
  rgba(255, 255, 255, 0.372)  70.894%,
  rgba(255, 255, 255, 0.371)  71.277%,
  rgba(255, 255, 255, 0.369)  71.658%,
  rgba(255, 255, 255, 0.365)  71.658%,
  rgba(255, 255, 255, 0.363)  72.039%,
  rgba(255, 255, 255, 0.361)  72.418%,
  rgba(255, 255, 255, 0.357)  72.418%,
  rgba(255, 255, 255, 0.355)  72.796%,
  rgba(255, 255, 255, 0.353)  73.174%,
  rgba(255, 255, 255, 0.349)  73.174%,
  rgba(255, 255, 255, 0.347)  73.550%,
  rgba(255, 255, 255, 0.345)  73.925%,
  rgba(255, 255, 255, 0.341)  73.925%,
  rgba(255, 255, 255, 0.339)  74.299%,
  rgba(255, 255, 255, 0.337)  74.672%,
  rgba(255, 255, 255, 0.333)  74.672%,
  rgba(255, 255, 255, 0.331)  75.044%,
  rgba(255, 255, 255, 0.329)  75.415%,
  rgba(255, 255, 255, 0.326)  75.415%,
  rgba(255, 255, 255, 0.324)  75.785%,
  rgba(255, 255, 255, 0.322)  76.153%,
  rgba(255, 255, 255, 0.318)  76.153%,
  rgba(255, 255, 255, 0.316)  76.521%,
  rgba(255, 255, 255, 0.314)  76.887%,
  rgba(255, 255, 255, 0.310)  76.887%,
  rgba(255, 255, 255, 0.308)  77.252%,
  rgba(255, 255, 255, 0.306)  77.616%,
  rgba(255, 255, 255, 0.302)  77.616%,
  rgba(255, 255, 255, 0.300)  77.979%,
  rgba(255, 255, 255, 0.298)  78.340%,
  rgba(255, 255, 255, 0.294)  78.340%,
  rgba(255, 255, 255, 0.292)  78.701%,
  rgba(255, 255, 255, 0.290)  79.060%,
  rgba(255, 255, 255, 0.286)  79.060%,
  rgba(255, 255, 255, 0.284)  79.418%,
  rgba(255, 255, 255, 0.282)  79.775%,
  rgba(255, 255, 255, 0.278)  79.775%,
  rgba(255, 255, 255, 0.277)  80.130%,
  rgba(255, 255, 255, 0.275)  80.484%,
  rgba(255, 255, 255, 0.271)  80.484%,
  rgba(255, 255, 255, 0.269)  80.837%,
  rgba(255, 255, 255, 0.267)  81.189%,
  rgba(255, 255, 255, 0.263)  81.189%,
  rgba(255, 255, 255, 0.261)  81.539%,
  rgba(255, 255, 255, 0.259)  81.888%,
  rgba(255, 255, 255, 0.255)  81.888%,
  rgba(255, 255, 255, 0.253)  82.236%,
  rgba(255, 255, 255, 0.251)  82.582%,
  rgba(255, 255, 255, 0.247)  82.582%,
  rgba(255, 255, 255, 0.245)  82.927%,
  rgba(255, 255, 255, 0.243)  83.270%,
  rgba(255, 255, 255, 0.239)  83.270%,
  rgba(255, 255, 255, 0.237)  83.612%,
  rgba(255, 255, 255, 0.235)  83.953%,
  rgba(255, 255, 255, 0.231)  83.953%,
  rgba(255, 255, 255, 0.229)  84.292%,
  rgba(255, 255, 255, 0.228)  84.630%,
  rgba(255, 255, 255, 0.224)  84.630%,
  rgba(255, 255, 255, 0.222)  84.966%,
  rgba(255, 255, 255, 0.220)  85.301%,
  rgba(255, 255, 255, 0.216)  85.301%,
  rgba(255, 255, 255, 0.214)  85.635%,
  rgba(255, 255, 255, 0.212)  85.966%,
  rgba(255, 255, 255, 0.208)  85.966%,
  rgba(255, 255, 255, 0.206)  86.297%,
  rgba(255, 255, 255, 0.204)  86.625%,
  rgba(255, 255, 255, 0.200)  86.625%,
  rgba(255, 255, 255, 0.198)  86.952%,
  rgba(255, 255, 255, 0.196)  87.278%,
  rgba(255, 255, 255, 0.192)  87.278%,
  rgba(255, 255, 255, 0.190)  87.601%,
  rgba(255, 255, 255, 0.188)  87.923%,
  rgba(255, 255, 255, 0.184)  87.923%,
  rgba(255, 255, 255, 0.182)  88.244%,
  rgba(255, 255, 255, 0.180)  88.562%,
  rgba(255, 255, 255, 0.176)  88.562%,
  rgba(255, 255, 255, 0.174)  88.879%,
  rgba(255, 255, 255, 0.172)  89.194%,
  rgba(255, 255, 255, 0.169)  89.194%,
  rgba(255, 255, 255, 0.167)  89.507%,
  rgba(255, 255, 255, 0.165)  89.819%,
  rgba(255, 255, 255, 0.161)  89.819%,
  rgba(255, 255, 255, 0.159)  90.128%,
  rgba(255, 255, 255, 0.157)  90.436%,
  rgba(255, 255, 255, 0.153)  90.436%,
  rgba(255, 255, 255, 0.151)  90.741%,
  rgba(255, 255, 255, 0.149)  91.045%,
  rgba(255, 255, 255, 0.145)  91.045%,
  rgba(255, 255, 255, 0.143)  91.346%,
  rgba(255, 255, 255, 0.141)  91.646%,
  rgba(255, 255, 255, 0.137)  91.646%,
  rgba(255, 255, 255, 0.135)  91.943%,
  rgba(255, 255, 255, 0.133)  92.238%,
  rgba(255, 255, 255, 0.129)  92.238%,
  rgba(255, 255, 255, 0.128)  92.531%,
  rgba(255, 255, 255, 0.126)  92.822%,
  rgba(255, 255, 255, 0.122)  92.822%,
  rgba(255, 255, 255, 0.120)  93.110%,
  rgba(255, 255, 255, 0.118)  93.396%,
  rgba(255, 255, 255, 0.114)  93.396%,
  rgba(255, 255, 255, 0.112)  93.679%,
  rgba(255, 255, 255, 0.110)  93.960%,
  rgba(255, 255, 255, 0.106)  93.960%,
  rgba(255, 255, 255, 0.104)  94.238%,
  rgba(255, 255, 255, 0.102)  94.514%,
  rgba(255, 255, 255, 0.098)  94.514%,
  rgba(255, 255, 255, 0.096)  94.787%,
  rgba(255, 255, 255, 0.094)  95.057%,
  rgba(255, 255, 255, 0.090)  95.057%,
  rgba(255, 255, 255, 0.088)  95.324%,
  rgba(255, 255, 255, 0.086)  95.588%,
  rgba(255, 255, 255, 0.082)  95.588%,
  rgba(255, 255, 255, 0.080)  95.849%,
  rgba(255, 255, 255, 0.078)  96.107%,
  rgba(255, 255, 255, 0.074)  96.107%,
  rgba(255, 255, 255, 0.072)  96.362%,
  rgba(255, 255, 255, 0.071)  96.612%,
  rgba(255, 255, 255, 0.067)  96.612%,
  rgba(255, 255, 255, 0.065)  96.860%,
  rgba(255, 255, 255, 0.063)  97.103%,
  rgba(255, 255, 255, 0.059)  97.103%,
  rgba(255, 255, 255, 0.057)  97.342%,
  rgba(255, 255, 255, 0.055)  97.578%,
  rgba(255, 255, 255, 0.051)  97.578%,
  rgba(255, 255, 255, 0.049)  97.808%,
  rgba(255, 255, 255, 0.047)  98.034%,
  rgba(255, 255, 255, 0.043)  98.034%,
  rgba(255, 255, 255, 0.041)  98.255%,
  rgba(255, 255, 255, 0.039)  98.470%,
  rgba(255, 255, 255, 0.035)  98.470%,
  rgba(255, 255, 255, 0.033)  98.680%,
  rgba(255, 255, 255, 0.031)  98.883%,
  rgba(255, 255, 255, 0.028)  98.883%,
  rgba(255, 255, 255, 0.025)  99.079%,
  rgba(255, 255, 255, 0.024)  99.266%,
  rgba(255, 255, 255, 0.020)  99.266%,
  rgba(255, 255, 255, 0.018)  99.445%,
  rgba(255, 255, 255, 0.016)  99.612%,
  rgba(255, 255, 255, 0.012)  99.612%,
  rgba(255, 255, 255, 0.010)  99.767%,
  rgba(255, 255, 255, 0.008)  99.902%,
  rgba(255, 255, 255, 0.004)  99.902%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%
);