/*
  cpt-city: tl/power-1.50 (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)   0.262%,
  rgba(255, 255, 255, 0.996)   0.524%,
  rgba(255, 255, 255, 0.992)   0.524%,
  rgba(255, 255, 255, 0.990)   0.786%,
  rgba(255, 255, 255, 0.988)   1.048%,
  rgba(255, 255, 255, 0.984)   1.048%,
  rgba(255, 255, 255, 0.982)   1.312%,
  rgba(255, 255, 255, 0.980)   1.575%,
  rgba(255, 255, 255, 0.977)   1.575%,
  rgba(255, 255, 255, 0.975)   1.839%,
  rgba(255, 255, 255, 0.973)   2.103%,
  rgba(255, 255, 255, 0.969)   2.103%,
  rgba(255, 255, 255, 0.967)   2.367%,
  rgba(255, 255, 255, 0.965)   2.632%,
  rgba(255, 255, 255, 0.961)   2.632%,
  rgba(255, 255, 255, 0.959)   2.897%,
  rgba(255, 255, 255, 0.957)   3.162%,
  rgba(255, 255, 255, 0.953)   3.162%,
  rgba(255, 255, 255, 0.951)   3.428%,
  rgba(255, 255, 255, 0.949)   3.695%,
  rgba(255, 255, 255, 0.945)   3.695%,
  rgba(255, 255, 255, 0.943)   3.961%,
  rgba(255, 255, 255, 0.941)   4.228%,
  rgba(255, 255, 255, 0.937)   4.228%,
  rgba(255, 255, 255, 0.935)   4.495%,
  rgba(255, 255, 255, 0.933)   4.763%,
  rgba(255, 255, 255, 0.929)   4.763%,
  rgba(255, 255, 255, 0.927)   5.031%,
  rgba(255, 255, 255, 0.925)   5.300%,
  rgba(255, 255, 255, 0.922)   5.300%,
  rgba(255, 255, 255, 0.920)   5.569%,
  rgba(255, 255, 255, 0.918)   5.838%,
  rgba(255, 255, 255, 0.914)   5.838%,
  rgba(255, 255, 255, 0.912)   6.107%,
  rgba(255, 255, 255, 0.910)   6.377%,
  rgba(255, 255, 255, 0.906)   6.377%,
  rgba(255, 255, 255, 0.904)   6.648%,
  rgba(255, 255, 255, 0.902)   6.918%,
  rgba(255, 255, 255, 0.898)   6.918%,
  rgba(255, 255, 255, 0.896)   7.190%,
  rgba(255, 255, 255, 0.894)   7.461%,
  rgba(255, 255, 255, 0.890)   7.461%,
  rgba(255, 255, 255, 0.888)   7.733%,
  rgba(255, 255, 255, 0.886)   8.006%,
  rgba(255, 255, 255, 0.882)   8.006%,
  rgba(255, 255, 255, 0.880)   8.278%,
  rgba(255, 255, 255, 0.878)   8.552%,
  rgba(255, 255, 255, 0.875)   8.552%,
  rgba(255, 255, 255, 0.873)   8.825%,
  rgba(255, 255, 255, 0.871)   9.099%,
  rgba(255, 255, 255, 0.867)   9.099%,
  rgba(255, 255, 255, 0.865)   9.373%,
  rgba(255, 255, 255, 0.863)   9.648%,
  rgba(255, 255, 255, 0.859)   9.648%,
  rgba(255, 255, 255, 0.857)   9.924%,
  rgba(255, 255, 255, 0.855)  10.199%,
  rgba(255, 255, 255, 0.851)  10.199%,
  rgba(255, 255, 255, 0.849)  10.475%,
  rgba(255, 255, 255, 0.847)  10.752%,
  rgba(255, 255, 255, 0.843)  10.752%,
  rgba(255, 255, 255, 0.841)  11.029%,
  rgba(255, 255, 255, 0.839)  11.306%,
  rgba(255, 255, 255, 0.835)  11.306%,
  rgba(255, 255, 255, 0.833)  11.584%,
  rgba(255, 255, 255, 0.831)  11.862%,
  rgba(255, 255, 255, 0.828)  11.862%,
  rgba(255, 255, 255, 0.826)  12.141%,
  rgba(255, 255, 255, 0.824)  12.420%,
  rgba(255, 255, 255, 0.820)  12.420%,
  rgba(255, 255, 255, 0.818)  12.700%,
  rgba(255, 255, 255, 0.816)  12.980%,
  rgba(255, 255, 255, 0.812)  12.980%,
  rgba(255, 255, 255, 0.810)  13.260%,
  rgba(255, 255, 255, 0.808)  13.541%,
  rgba(255, 255, 255, 0.804)  13.541%,
  rgba(255, 255, 255, 0.802)  13.823%,
  rgba(255, 255, 255, 0.800)  14.104%,
  rgba(255, 255, 255, 0.796)  14.104%,
  rgba(255, 255, 255, 0.794)  14.387%,
  rgba(255, 255, 255, 0.792)  14.670%,
  rgba(255, 255, 255, 0.788)  14.670%,
  rgba(255, 255, 255, 0.786)  14.953%,
  rgba(255, 255, 255, 0.784)  15.237%,
  rgba(255, 255, 255, 0.780)  15.237%,
  rgba(255, 255, 255, 0.778)  15.521%,
  rgba(255, 255, 255, 0.776)  15.805%,
  rgba(255, 255, 255, 0.772)  15.805%,
  rgba(255, 255, 255, 0.771)  16.091%,
  rgba(255, 255, 255, 0.769)  16.376%,
  rgba(255, 255, 255, 0.765)  16.376%,
  rgba(255, 255, 255, 0.763)  16.662%,
  rgba(255, 255, 255, 0.761)  16.949%,
  rgba(255, 255, 255, 0.757)  16.949%,
  rgba(255, 255, 255, 0.755)  17.236%,
  rgba(255, 255, 255, 0.753)  17.524%,
  rgba(255, 255, 255, 0.749)  17.524%,
  rgba(255, 255, 255, 0.747)  17.812%,
  rgba(255, 255, 255, 0.745)  18.101%,
  rgba(255, 255, 255, 0.741)  18.101%,
  rgba(255, 255, 255, 0.739)  18.390%,
  rgba(255, 255, 255, 0.737)  18.679%,
  rgba(255, 255, 255, 0.733)  18.679%,
  rgba(255, 255, 255, 0.731)  18.970%,
  rgba(255, 255, 255, 0.729)  19.260%,
  rgba(255, 255, 255, 0.726)  19.260%,
  rgba(255, 255, 255, 0.724)  19.551%,
  rgba(255, 255, 255, 0.722)  19.843%,
  rgba(255, 255, 255, 0.718)  19.843%,
  rgba(255, 255, 255, 0.716)  20.135%,
  rgba(255, 255, 255, 0.714)  20.428%,
  rgba(255, 255, 255, 0.710)  20.428%,
  rgba(255, 255, 255, 0.708)  20.722%,
  rgba(255, 255, 255, 0.706)  21.015%,
  rgba(255, 255, 255, 0.702)  21.015%,
  rgba(255, 255, 255, 0.700)  21.310%,
  rgba(255, 255, 255, 0.698)  21.605%,
  rgba(255, 255, 255, 0.694)  21.605%,
  rgba(255, 255, 255, 0.692)  21.901%,
  rgba(255, 255, 255, 0.690)  22.197%,
  rgba(255, 255, 255, 0.686)  22.197%,
  rgba(255, 255, 255, 0.684)  22.493%,
  rgba(255, 255, 255, 0.682)  22.791%,
  rgba(255, 255, 255, 0.678)  22.791%,
  rgba(255, 255, 255, 0.676)  23.088%,
  rgba(255, 255, 255, 0.674)  23.387%,
  rgba(255, 255, 255, 0.671)  23.387%,
  rgba(255, 255, 255, 0.669)  23.686%,
  rgba(255, 255, 255, 0.667)  23.985%,
  rgba(255, 255, 255, 0.663)  23.985%,
  rgba(255, 255, 255, 0.661)  24.285%,
  rgba(255, 255, 255, 0.659)  24.586%,
  rgba(255, 255, 255, 0.655)  24.586%,
  rgba(255, 255, 255, 0.653)  24.887%,
  rgba(255, 255, 255, 0.651)  25.189%,
  rgba(255, 255, 255, 0.647)  25.189%,
  rgba(255, 255, 255, 0.645)  25.492%,
  rgba(255, 255, 255, 0.643)  25.795%,
  rgba(255, 255, 255, 0.639)  25.795%,
  rgba(255, 255, 255, 0.637)  26.099%,
  rgba(255, 255, 255, 0.635)  26.404%,
  rgba(255, 255, 255, 0.631)  26.404%,
  rgba(255, 255, 255, 0.629)  26.709%,
  rgba(255, 255, 255, 0.627)  27.014%,
  rgba(255, 255, 255, 0.624)  27.014%,
  rgba(255, 255, 255, 0.622)  27.321%,
  rgba(255, 255, 255, 0.620)  27.628%,
  rgba(255, 255, 255, 0.616)  27.628%,
  rgba(255, 255, 255, 0.614)  27.935%,
  rgba(255, 255, 255, 0.612)  28.244%,
  rgba(255, 255, 255, 0.608)  28.244%,
  rgba(255, 255, 255, 0.606)  28.552%,
  rgba(255, 255, 255, 0.604)  28.862%,
  rgba(255, 255, 255, 0.600)  28.862%,
  rgba(255, 255, 255, 0.598)  29.172%,
  rgba(255, 255, 255, 0.596)  29.483%,
  rgba(255, 255, 255, 0.592)  29.483%,
  rgba(255, 255, 255, 0.590)  29.795%,
  rgba(255, 255, 255, 0.588)  30.108%,
  rgba(255, 255, 255, 0.584)  30.108%,
  rgba(255, 255, 255, 0.582)  30.421%,
  rgba(255, 255, 255, 0.580)  30.734%,
  rgba(255, 255, 255, 0.577)  30.734%,
  rgba(255, 255, 255, 0.575)  31.049%,
  rgba(255, 255, 255, 0.573)  31.364%,
  rgba(255, 255, 255, 0.569)  31.364%,
  rgba(255, 255, 255, 0.567)  31.680%,
  rgba(255, 255, 255, 0.565)  31.997%,
  rgba(255, 255, 255, 0.561)  31.997%,
  rgba(255, 255, 255, 0.559)  32.314%,
  rgba(255, 255, 255, 0.557)  32.632%,
  rgba(255, 255, 255, 0.553)  32.632%,
  rgba(255, 255, 255, 0.551)  32.951%,
  rgba(255, 255, 255, 0.549)  33.271%,
  rgba(255, 255, 255, 0.545)  33.271%,
  rgba(255, 255, 255, 0.543)  33.591%,
  rgba(255, 255, 255, 0.541)  33.912%,
  rgba(255, 255, 255, 0.537)  33.912%,
  rgba(255, 255, 255, 0.535)  34.234%,
  rgba(255, 255, 255, 0.533)  34.557%,
  rgba(255, 255, 255, 0.529)  34.557%,
  rgba(255, 255, 255, 0.527)  34.881%,
  rgba(255, 255, 255, 0.525)  35.205%,
  rgba(255, 255, 255, 0.522)  35.205%,
  rgba(255, 255, 255, 0.520)  35.530%,
  rgba(255, 255, 255, 0.518)  35.856%,
  rgba(255, 255, 255, 0.514)  35.856%,
  rgba(255, 255, 255, 0.512)  36.183%,
  rgba(255, 255, 255, 0.510)  36.511%,
  rgba(255, 255, 255, 0.506)  36.511%,
  rgba(255, 255, 255, 0.504)  36.839%,
  rgba(255, 255, 255, 0.502)  37.169%,
  rgba(255, 255, 255, 0.498)  37.169%,
  rgba(255, 255, 255, 0.496)  37.499%,
  rgba(255, 255, 255, 0.494)  37.830%,
  rgba(255, 255, 255, 0.490)  37.830%,
  rgba(255, 255, 255, 0.488)  38.162%,
  rgba(255, 255, 255, 0.486)  38.495%,
  rgba(255, 255, 255, 0.482)  38.495%,
  rgba(255, 255, 255, 0.480)  38.829%,
  rgba(255, 255, 255, 0.478)  39.164%,
  rgba(255, 255, 255, 0.474)  39.164%,
  rgba(255, 255, 255, 0.472)  39.499%,
  rgba(255, 255, 255, 0.471)  39.836%,
  rgba(255, 255, 255, 0.467)  39.836%,
  rgba(255, 255, 255, 0.465)  40.173%,
  rgba(255, 255, 255, 0.463)  40.512%,
  rgba(255, 255, 255, 0.459)  40.512%,
  rgba(255, 255, 255, 0.457)  40.851%,
  rgba(255, 255, 255, 0.455)  41.192%,
  rgba(255, 255, 255, 0.451)  41.192%,
  rgba(255, 255, 255, 0.449)  41.533%,
  rgba(255, 255, 255, 0.447)  41.876%,
  rgba(255, 255, 255, 0.443)  41.876%,
  rgba(255, 255, 255, 0.441)  42.219%,
  rgba(255, 255, 255, 0.439)  42.563%,
  rgba(255, 255, 255, 0.435)  42.563%,
  rgba(255, 255, 255, 0.433)  42.909%,
  rgba(255, 255, 255, 0.431)  43.255%,
  rgba(255, 255, 255, 0.427)  43.255%,
  rgba(255, 255, 255, 0.425)  43.603%,
  rgba(255, 255, 255, 0.423)  43.952%,
  rgba(255, 255, 255, 0.420)  43.952%,
  rgba(255, 255, 255, 0.418)  44.301%,
  rgba(255, 255, 255, 0.416)  44.652%,
  rgba(255, 255, 255, 0.412)  44.652%,
  rgba(255, 255, 255, 0.410)  45.004%,
  rgba(255, 255, 255, 0.408)  45.357%,
  rgba(255, 255, 255, 0.404)  45.357%,
  rgba(255, 255, 255, 0.402)  45.712%,
  rgba(255, 255, 255, 0.400)  46.067%,
  rgba(255, 255, 255, 0.396)  46.067%,
  rgba(255, 255, 255, 0.394)  46.424%,
  rgba(255, 255, 255, 0.392)  46.781%,
  rgba(255, 255, 255, 0.388)  46.781%,
  rgba(255, 255, 255, 0.386)  47.140%,
  rgba(255, 255, 255, 0.384)  47.501%,
  rgba(255, 255, 255, 0.380)  47.501%,
  rgba(255, 255, 255, 0.378)  47.862%,
  rgba(255, 255, 255, 0.377)  48.225%,
  rgba(255, 255, 255, 0.372)  48.225%,
  rgba(255, 255, 255, 0.371)  48.589%,
  rgba(255, 255, 255, 0.369)  48.954%,
  rgba(255, 255, 255, 0.365)  48.954%,
  rgba(255, 255, 255, 0.363)  49.321%,
  rgba(255, 255, 255, 0.361)  49.688%,
  rgba(255, 255, 255, 0.357)  49.688%,
  rgba(255, 255, 255, 0.355)  50.058%,
  rgba(255, 255, 255, 0.353)  50.428%,
  rgba(255, 255, 255, 0.349)  50.428%,
  rgba(255, 255, 255, 0.347)  50.800%,
  rgba(255, 255, 255, 0.345)  51.174%,
  rgba(255, 255, 255, 0.341)  51.174%,
  rgba(255, 255, 255, 0.339)  51.549%,
  rgba(255, 255, 255, 0.337)  51.925%,
  rgba(255, 255, 255, 0.333)  51.925%,
  rgba(255, 255, 255, 0.331)  52.303%,
  rgba(255, 255, 255, 0.329)  52.682%,
  rgba(255, 255, 255, 0.326)  52.682%,
  rgba(255, 255, 255, 0.324)  53.063%,
  rgba(255, 255, 255, 0.322)  53.445%,
  rgba(255, 255, 255, 0.318)  53.445%,
  rgba(255, 255, 255, 0.316)  53.829%,
  rgba(255, 255, 255, 0.314)  54.215%,
  rgba(255, 255, 255, 0.310)  54.215%,
  rgba(255, 255, 255, 0.308)  54.602%,
  rgba(255, 255, 255, 0.306)  54.991%,
  rgba(255, 255, 255, 0.302)  54.991%,
  rgba(255, 255, 255, 0.300)  55.381%,
  rgba(255, 255, 255, 0.298)  55.774%,
  rgba(255, 255, 255, 0.294)  55.774%,
  rgba(255, 255, 255, 0.292)  56.168%,
  rgba(255, 255, 255, 0.290)  56.563%,
  rgba(255, 255, 255, 0.286)  56.563%,
  rgba(255, 255, 255, 0.284)  56.961%,
  rgba(255, 255, 255, 0.282)  57.361%,
  rgba(255, 255, 255, 0.278)  57.361%,
  rgba(255, 255, 255, 0.277)  57.762%,
  rgba(255, 255, 255, 0.275)  58.165%,
  rgba(255, 255, 255, 0.271)  58.165%,
  rgba(255, 255, 255, 0.269)  58.570%,
  rgba(255, 255, 255, 0.267)  58.977%,
  rgba(255, 255, 255, 0.263)  58.977%,
  rgba(255, 255, 255, 0.261)  59.387%,
  rgba(255, 255, 255, 0.259)  59.798%,
  rgba(255, 255, 255, 0.255)  59.798%,
  rgba(255, 255, 255, 0.253)  60.211%,
  rgba(255, 255, 255, 0.251)  60.627%,
  rgba(255, 255, 255, 0.247)  60.627%,
  rgba(255, 255, 255, 0.245)  61.045%,
  rgba(255, 255, 255, 0.243)  61.465%,
  rgba(255, 255, 255, 0.239)  61.465%,
  rgba(255, 255, 255, 0.237)  61.887%,
  rgba(255, 255, 255, 0.235)  62.312%,
  rgba(255, 255, 255, 0.231)  62.312%,
  rgba(255, 255, 255, 0.229)  62.739%,
  rgba(255, 255, 255, 0.228)  63.168%,
  rgba(255, 255, 255, 0.224)  63.168%,
  rgba(255, 255, 255, 0.222)  63.600%,
  rgba(255, 255, 255, 0.220)  64.035%,
  rgba(255, 255, 255, 0.216)  64.035%,
  rgba(255, 255, 255, 0.214)  64.472%,
  rgba(255, 255, 255, 0.212)  64.912%,
  rgba(255, 255, 255, 0.208)  64.912%,
  rgba(255, 255, 255, 0.206)  65.355%,
  rgba(255, 255, 255, 0.204)  65.800%,
  rgba(255, 255, 255, 0.200)  65.800%,
  rgba(255, 255, 255, 0.198)  66.249%,
  rgba(255, 255, 255, 0.196)  66.701%,
  rgba(255, 255, 255, 0.192)  66.701%,
  rgba(255, 255, 255, 0.190)  67.155%,
  rgba(255, 255, 255, 0.188)  67.613%,
  rgba(255, 255, 255, 0.184)  67.613%,
  rgba(255, 255, 255, 0.182)  68.074%,
  rgba(255, 255, 255, 0.180)  68.538%,
  rgba(255, 255, 255, 0.176)  68.538%,
  rgba(255, 255, 255, 0.174)  69.006%,
  rgba(255, 255, 255, 0.172)  69.478%,
  rgba(255, 255, 255, 0.169)  69.478%,
  rgba(255, 255, 255, 0.167)  69.953%,
  rgba(255, 255, 255, 0.165)  70.431%,
  rgba(255, 255, 255, 0.161)  70.431%,
  rgba(255, 255, 255, 0.159)  70.914%,
  rgba(255, 255, 255, 0.157)  71.401%,
  rgba(255, 255, 255, 0.153)  71.401%,
  rgba(255, 255, 255, 0.151)  71.892%,
  rgba(255, 255, 255, 0.149)  72.387%,
  rgba(255, 255, 255, 0.145)  72.387%,
  rgba(255, 255, 255, 0.143)  72.887%,
  rgba(255, 255, 255, 0.141)  73.392%,
  rgba(255, 255, 255, 0.137)  73.392%,
  rgba(255, 255, 255, 0.135)  73.901%,
  rgba(255, 255, 255, 0.133)  74.415%,
  rgba(255, 255, 255, 0.129)  74.415%,
  rgba(255, 255, 255, 0.128)  74.935%,
  rgba(255, 255, 255, 0.126)  75.460%,
  rgba(255, 255, 255, 0.122)  75.460%,
  rgba(255, 255, 255, 0.120)  75.990%,
  rgba(255, 255, 255, 0.118)  76.527%,
  rgba(255, 255, 255, 0.114)  76.527%,
  rgba(255, 255, 255, 0.112)  77.070%,
  rgba(255, 255, 255, 0.110)  77.619%,
  rgba(255, 255, 255, 0.106)  77.619%,
  rgba(255, 255, 255, 0.104)  78.175%,
  rgba(255, 255, 255, 0.102)  78.738%,
  rgba(255, 255, 255, 0.098)  78.738%,
  rgba(255, 255, 255, 0.096)  79.309%,
  rgba(255, 255, 255, 0.094)  79.888%,
  rgba(255, 255, 255, 0.090)  79.888%,
  rgba(255, 255, 255, 0.088)  80.475%,
  rgba(255, 255, 255, 0.086)  81.071%,
  rgba(255, 255, 255, 0.082)  81.071%,
  rgba(255, 255, 255, 0.080)  81.677%,
  rgba(255, 255, 255, 0.078)  82.293%,
  rgba(255, 255, 255, 0.074)  82.293%,
  rgba(255, 255, 255, 0.072)  82.920%,
  rgba(255, 255, 255, 0.071)  83.559%,
  rgba(255, 255, 255, 0.067)  83.559%,
  rgba(255, 255, 255, 0.065)  84.210%,
  rgba(255, 255, 255, 0.063)  84.875%,
  rgba(255, 255, 255, 0.059)  84.875%,
  rgba(255, 255, 255, 0.057)  85.555%,
  rgba(255, 255, 255, 0.055)  86.251%,
  rgba(255, 255, 255, 0.051)  86.251%,
  rgba(255, 255, 255, 0.049)  86.966%,
  rgba(255, 255, 255, 0.047)  87.700%,
  rgba(255, 255, 255, 0.043)  87.700%,
  rgba(255, 255, 255, 0.041)  88.457%,
  rgba(255, 255, 255, 0.039)  89.240%,
  rgba(255, 255, 255, 0.035)  89.240%,
  rgba(255, 255, 255, 0.033)  90.053%,
  rgba(255, 255, 255, 0.031)  90.900%,
  rgba(255, 255, 255, 0.028)  90.900%,
  rgba(255, 255, 255, 0.025)  91.789%,
  rgba(255, 255, 255, 0.024)  92.729%,
  rgba(255, 255, 255, 0.020)  92.729%,
  rgba(255, 255, 255, 0.018)  93.734%,
  rgba(255, 255, 255, 0.016)  94.827%,
  rgba(255, 255, 255, 0.012)  94.827%,
  rgba(255, 255, 255, 0.010)  96.052%,
  rgba(255, 255, 255, 0.008)  97.513%,
  rgba(255, 255, 255, 0.004)  97.513%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%
);