/*
  cpt-city: tl/power-0.33 (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)   1.184%,
  rgba(255, 255, 255, 0.996)   2.358%,
  rgba(255, 255, 255, 0.992)   2.358%,
  rgba(255, 255, 255, 0.990)   3.523%,
  rgba(255, 255, 255, 0.988)   4.678%,
  rgba(255, 255, 255, 0.984)   4.678%,
  rgba(255, 255, 255, 0.982)   5.824%,
  rgba(255, 255, 255, 0.980)   6.961%,
  rgba(255, 255, 255, 0.977)   6.961%,
  rgba(255, 255, 255, 0.975)   8.089%,
  rgba(255, 255, 255, 0.973)   9.207%,
  rgba(255, 255, 255, 0.969)   9.207%,
  rgba(255, 255, 255, 0.967)  10.317%,
  rgba(255, 255, 255, 0.965)  11.417%,
  rgba(255, 255, 255, 0.961)  11.417%,
  rgba(255, 255, 255, 0.959)  12.508%,
  rgba(255, 255, 255, 0.957)  13.590%,
  rgba(255, 255, 255, 0.953)  13.590%,
  rgba(255, 255, 255, 0.951)  14.663%,
  rgba(255, 255, 255, 0.949)  15.727%,
  rgba(255, 255, 255, 0.945)  15.727%,
  rgba(255, 255, 255, 0.943)  16.782%,
  rgba(255, 255, 255, 0.941)  17.829%,
  rgba(255, 255, 255, 0.937)  17.829%,
  rgba(255, 255, 255, 0.935)  18.866%,
  rgba(255, 255, 255, 0.933)  19.895%,
  rgba(255, 255, 255, 0.929)  19.895%,
  rgba(255, 255, 255, 0.927)  20.915%,
  rgba(255, 255, 255, 0.925)  21.926%,
  rgba(255, 255, 255, 0.922)  21.926%,
  rgba(255, 255, 255, 0.920)  22.928%,
  rgba(255, 255, 255, 0.918)  23.922%,
  rgba(255, 255, 255, 0.914)  23.922%,
  rgba(255, 255, 255, 0.912)  24.907%,
  rgba(255, 255, 255, 0.910)  25.884%,
  rgba(255, 255, 255, 0.906)  25.884%,
  rgba(255, 255, 255, 0.904)  26.852%,
  rgba(255, 255, 255, 0.902)  27.811%,
  rgba(255, 255, 255, 0.898)  27.811%,
  rgba(255, 255, 255, 0.896)  28.762%,
  rgba(255, 255, 255, 0.894)  29.705%,
  rgba(255, 255, 255, 0.890)  29.705%,
  rgba(255, 255, 255, 0.888)  30.639%,
  rgba(255, 255, 255, 0.886)  31.565%,
  rgba(255, 255, 255, 0.882)  31.565%,
  rgba(255, 255, 255, 0.880)  32.482%,
  rgba(255, 255, 255, 0.878)  33.392%,
  rgba(255, 255, 255, 0.875)  33.392%,
  rgba(255, 255, 255, 0.873)  34.293%,
  rgba(255, 255, 255, 0.871)  35.185%,
  rgba(255, 255, 255, 0.867)  35.185%,
  rgba(255, 255, 255, 0.865)  36.070%,
  rgba(255, 255, 255, 0.863)  36.947%,
  rgba(255, 255, 255, 0.859)  36.947%,
  rgba(255, 255, 255, 0.857)  37.815%,
  rgba(255, 255, 255, 0.855)  38.675%,
  rgba(255, 255, 255, 0.851)  38.675%,
  rgba(255, 255, 255, 0.849)  39.528%,
  rgba(255, 255, 255, 0.847)  40.372%,
  rgba(255, 255, 255, 0.843)  40.372%,
  rgba(255, 255, 255, 0.841)  41.209%,
  rgba(255, 255, 255, 0.839)  42.037%,
  rgba(255, 255, 255, 0.835)  42.037%,
  rgba(255, 255, 255, 0.833)  42.858%,
  rgba(255, 255, 255, 0.831)  43.671%,
  rgba(255, 255, 255, 0.828)  43.671%,
  rgba(255, 255, 255, 0.826)  44.476%,
  rgba(255, 255, 255, 0.824)  45.273%,
  rgba(255, 255, 255, 0.820)  45.273%,
  rgba(255, 255, 255, 0.818)  46.063%,
  rgba(255, 255, 255, 0.816)  46.845%,
  rgba(255, 255, 255, 0.812)  46.845%,
  rgba(255, 255, 255, 0.810)  47.619%,
  rgba(255, 255, 255, 0.808)  48.386%,
  rgba(255, 255, 255, 0.804)  48.386%,
  rgba(255, 255, 255, 0.802)  49.145%,
  rgba(255, 255, 255, 0.800)  49.897%,
  rgba(255, 255, 255, 0.796)  49.897%,
  rgba(255, 255, 255, 0.794)  50.641%,
  rgba(255, 255, 255, 0.792)  51.378%,
  rgba(255, 255, 255, 0.788)  51.378%,
  rgba(255, 255, 255, 0.786)  52.107%,
  rgba(255, 255, 255, 0.784)  52.829%,
  rgba(255, 255, 255, 0.780)  52.829%,
  rgba(255, 255, 255, 0.778)  53.544%,
  rgba(255, 255, 255, 0.776)  54.251%,
  rgba(255, 255, 255, 0.772)  54.251%,
  rgba(255, 255, 255, 0.771)  54.951%,
  rgba(255, 255, 255, 0.769)  55.644%,
  rgba(255, 255, 255, 0.765)  55.644%,
  rgba(255, 255, 255, 0.763)  56.330%,
  rgba(255, 255, 255, 0.761)  57.008%,
  rgba(255, 255, 255, 0.757)  57.008%,
  rgba(255, 255, 255, 0.755)  57.680%,
  rgba(255, 255, 255, 0.753)  58.344%,
  rgba(255, 255, 255, 0.749)  58.344%,
  rgba(255, 255, 255, 0.747)  59.002%,
  rgba(255, 255, 255, 0.745)  59.652%,
  rgba(255, 255, 255, 0.741)  59.652%,
  rgba(255, 255, 255, 0.739)  60.295%,
  rgba(255, 255, 255, 0.737)  60.932%,
  rgba(255, 255, 255, 0.733)  60.932%,
  rgba(255, 255, 255, 0.731)  61.562%,
  rgba(255, 255, 255, 0.729)  62.184%,
  rgba(255, 255, 255, 0.726)  62.184%,
  rgba(255, 255, 255, 0.724)  62.800%,
  rgba(255, 255, 255, 0.722)  63.410%,
  rgba(255, 255, 255, 0.718)  63.410%,
  rgba(255, 255, 255, 0.716)  64.012%,
  rgba(255, 255, 255, 0.714)  64.608%,
  rgba(255, 255, 255, 0.710)  64.608%,
  rgba(255, 255, 255, 0.708)  65.197%,
  rgba(255, 255, 255, 0.706)  65.780%,
  rgba(255, 255, 255, 0.702)  65.780%,
  rgba(255, 255, 255, 0.700)  66.356%,
  rgba(255, 255, 255, 0.698)  66.925%,
  rgba(255, 255, 255, 0.694)  66.925%,
  rgba(255, 255, 255, 0.692)  67.488%,
  rgba(255, 255, 255, 0.690)  68.045%,
  rgba(255, 255, 255, 0.686)  68.045%,
  rgba(255, 255, 255, 0.684)  68.595%,
  rgba(255, 255, 255, 0.682)  69.139%,
  rgba(255, 255, 255, 0.678)  69.139%,
  rgba(255, 255, 255, 0.676)  69.676%,
  rgba(255, 255, 255, 0.674)  70.207%,
  rgba(255, 255, 255, 0.671)  70.207%,
  rgba(255, 255, 255, 0.669)  70.732%,
  rgba(255, 255, 255, 0.667)  71.251%,
  rgba(255, 255, 255, 0.663)  71.251%,
  rgba(255, 255, 255, 0.661)  71.763%,
  rgba(255, 255, 255, 0.659)  72.269%,
  rgba(255, 255, 255, 0.655)  72.269%,
  rgba(255, 255, 255, 0.653)  72.770%,
  rgba(255, 255, 255, 0.651)  73.264%,
  rgba(255, 255, 255, 0.647)  73.264%,
  rgba(255, 255, 255, 0.645)  73.752%,
  rgba(255, 255, 255, 0.643)  74.234%,
  rgba(255, 255, 255, 0.639)  74.234%,
  rgba(255, 255, 255, 0.637)  74.710%,
  rgba(255, 255, 255, 0.635)  75.180%,
  rgba(255, 255, 255, 0.631)  75.180%,
  rgba(255, 255, 255, 0.629)  75.644%,
  rgba(255, 255, 255, 0.627)  76.102%,
  rgba(255, 255, 255, 0.624)  76.102%,
  rgba(255, 255, 255, 0.622)  76.555%,
  rgba(255, 255, 255, 0.620)  77.002%,
  rgba(255, 255, 255, 0.616)  77.002%,
  rgba(255, 255, 255, 0.614)  77.443%,
  rgba(255, 255, 255, 0.612)  77.878%,
  rgba(255, 255, 255, 0.608)  77.878%,
  rgba(255, 255, 255, 0.606)  78.308%,
  rgba(255, 255, 255, 0.604)  78.732%,
  rgba(255, 255, 255, 0.600)  78.732%,
  rgba(255, 255, 255, 0.598)  79.150%,
  rgba(255, 255, 255, 0.596)  79.563%,
  rgba(255, 255, 255, 0.592)  79.563%,
  rgba(255, 255, 255, 0.590)  79.971%,
  rgba(255, 255, 255, 0.588)  80.372%,
  rgba(255, 255, 255, 0.584)  80.372%,
  rgba(255, 255, 255, 0.582)  80.769%,
  rgba(255, 255, 255, 0.580)  81.160%,
  rgba(255, 255, 255, 0.577)  81.160%,
  rgba(255, 255, 255, 0.575)  81.546%,
  rgba(255, 255, 255, 0.573)  81.926%,
  rgba(255, 255, 255, 0.569)  81.926%,
  rgba(255, 255, 255, 0.567)  82.301%,
  rgba(255, 255, 255, 0.565)  82.671%,
  rgba(255, 255, 255, 0.561)  82.671%,
  rgba(255, 255, 255, 0.559)  83.035%,
  rgba(255, 255, 255, 0.557)  83.395%,
  rgba(255, 255, 255, 0.553)  83.395%,
  rgba(255, 255, 255, 0.551)  83.749%,
  rgba(255, 255, 255, 0.549)  84.099%,
  rgba(255, 255, 255, 0.545)  84.099%,
  rgba(255, 255, 255, 0.543)  84.443%,
  rgba(255, 255, 255, 0.541)  84.782%,
  rgba(255, 255, 255, 0.537)  84.782%,
  rgba(255, 255, 255, 0.535)  85.116%,
  rgba(255, 255, 255, 0.533)  85.445%,
  rgba(255, 255, 255, 0.529)  85.445%,
  rgba(255, 255, 255, 0.527)  85.769%,
  rgba(255, 255, 255, 0.525)  86.089%,
  rgba(255, 255, 255, 0.522)  86.089%,
  rgba(255, 255, 255, 0.520)  86.403%,
  rgba(255, 255, 255, 0.518)  86.713%,
  rgba(255, 255, 255, 0.514)  86.713%,
  rgba(255, 255, 255, 0.512)  87.018%,
  rgba(255, 255, 255, 0.510)  87.318%,
  rgba(255, 255, 255, 0.506)  87.318%,
  rgba(255, 255, 255, 0.504)  87.614%,
  rgba(255, 255, 255, 0.502)  87.905%,
  rgba(255, 255, 255, 0.498)  87.905%,
  rgba(255, 255, 255, 0.496)  88.191%,
  rgba(255, 255, 255, 0.494)  88.473%,
  rgba(255, 255, 255, 0.490)  88.473%,
  rgba(255, 255, 255, 0.488)  88.750%,
  rgba(255, 255, 255, 0.486)  89.023%,
  rgba(255, 255, 255, 0.482)  89.023%,
  rgba(255, 255, 255, 0.480)  89.291%,
  rgba(255, 255, 255, 0.478)  89.555%,
  rgba(255, 255, 255, 0.474)  89.555%,
  rgba(255, 255, 255, 0.472)  89.814%,
  rgba(255, 255, 255, 0.471)  90.069%,
  rgba(255, 255, 255, 0.467)  90.069%,
  rgba(255, 255, 255, 0.465)  90.320%,
  rgba(255, 255, 255, 0.463)  90.566%,
  rgba(255, 255, 255, 0.459)  90.566%,
  rgba(255, 255, 255, 0.457)  90.808%,
  rgba(255, 255, 255, 0.455)  91.046%,
  rgba(255, 255, 255, 0.451)  91.046%,
  rgba(255, 255, 255, 0.449)  91.280%,
  rgba(255, 255, 255, 0.447)  91.510%,
  rgba(255, 255, 255, 0.443)  91.510%,
  rgba(255, 255, 255, 0.441)  91.736%,
  rgba(255, 255, 255, 0.439)  91.957%,
  rgba(255, 255, 255, 0.435)  91.957%,
  rgba(255, 255, 255, 0.433)  92.175%,
  rgba(255, 255, 255, 0.431)  92.388%,
  rgba(255, 255, 255, 0.427)  92.388%,
  rgba(255, 255, 255, 0.425)  92.598%,
  rgba(255, 255, 255, 0.423)  92.804%,
  rgba(255, 255, 255, 0.420)  92.804%,
  rgba(255, 255, 255, 0.418)  93.006%,
  rgba(255, 255, 255, 0.416)  93.204%,
  rgba(255, 255, 255, 0.412)  93.204%,
  rgba(255, 255, 255, 0.410)  93.398%,
  rgba(255, 255, 255, 0.408)  93.588%,
  rgba(255, 255, 255, 0.404)  93.588%,
  rgba(255, 255, 255, 0.402)  93.775%,
  rgba(255, 255, 255, 0.400)  93.958%,
  rgba(255, 255, 255, 0.396)  93.958%,
  rgba(255, 255, 255, 0.394)  94.138%,
  rgba(255, 255, 255, 0.392)  94.314%,
  rgba(255, 255, 255, 0.388)  94.314%,
  rgba(255, 255, 255, 0.386)  94.486%,
  rgba(255, 255, 255, 0.384)  94.655%,
  rgba(255, 255, 255, 0.380)  94.655%,
  rgba(255, 255, 255, 0.378)  94.820%,
  rgba(255, 255, 255, 0.377)  94.982%,
  rgba(255, 255, 255, 0.372)  94.982%,
  rgba(255, 255, 255, 0.371)  95.140%,
  rgba(255, 255, 255, 0.369)  95.295%,
  rgba(255, 255, 255, 0.365)  95.295%,
  rgba(255, 255, 255, 0.363)  95.447%,
  rgba(255, 255, 255, 0.361)  95.595%,
  rgba(255, 255, 255, 0.357)  95.595%,
  rgba(255, 255, 255, 0.355)  95.740%,
  rgba(255, 255, 255, 0.353)  95.882%,
  rgba(255, 255, 255, 0.349)  95.882%,
  rgba(255, 255, 255, 0.347)  96.020%,
  rgba(255, 255, 255, 0.345)  96.156%,
  rgba(255, 255, 255, 0.341)  96.156%,
  rgba(255, 255, 255, 0.339)  96.288%,
  rgba(255, 255, 255, 0.337)  96.418%,
  rgba(255, 255, 255, 0.333)  96.418%,
  rgba(255, 255, 255, 0.331)  96.544%,
  rgba(255, 255, 255, 0.329)  96.667%,
  rgba(255, 255, 255, 0.326)  96.667%,
  rgba(255, 255, 255, 0.324)  96.787%,
  rgba(255, 255, 255, 0.322)  96.904%,
  rgba(255, 255, 255, 0.318)  96.904%,
  rgba(255, 255, 255, 0.316)  97.019%,
  rgba(255, 255, 255, 0.314)  97.130%,
  rgba(255, 255, 255, 0.310)  97.130%,
  rgba(255, 255, 255, 0.308)  97.239%,
  rgba(255, 255, 255, 0.306)  97.345%,
  rgba(255, 255, 255, 0.302)  97.345%,
  rgba(255, 255, 255, 0.300)  97.448%,
  rgba(255, 255, 255, 0.298)  97.548%,
  rgba(255, 255, 255, 0.294)  97.548%,
  rgba(255, 255, 255, 0.292)  97.646%,
  rgba(255, 255, 255, 0.290)  97.741%,
  rgba(255, 255, 255, 0.286)  97.741%,
  rgba(255, 255, 255, 0.284)  97.834%,
  rgba(255, 255, 255, 0.282)  97.924%,
  rgba(255, 255, 255, 0.278)  97.924%,
  rgba(255, 255, 255, 0.277)  98.011%,
  rgba(255, 255, 255, 0.275)  98.096%,
  rgba(255, 255, 255, 0.271)  98.096%,
  rgba(255, 255, 255, 0.269)  98.178%,
  rgba(255, 255, 255, 0.267)  98.258%,
  rgba(255, 255, 255, 0.263)  98.258%,
  rgba(255, 255, 255, 0.261)  98.336%,
  rgba(255, 255, 255, 0.259)  98.411%,
  rgba(255, 255, 255, 0.255)  98.411%,
  rgba(255, 255, 255, 0.253)  98.484%,
  rgba(255, 255, 255, 0.251)  98.555%,
  rgba(255, 255, 255, 0.247)  98.555%,
  rgba(255, 255, 255, 0.245)  98.623%,
  rgba(255, 255, 255, 0.243)  98.689%,
  rgba(255, 255, 255, 0.239)  98.689%,
  rgba(255, 255, 255, 0.237)  98.753%,
  rgba(255, 255, 255, 0.235)  98.815%,
  rgba(255, 255, 255, 0.231)  98.815%,
  rgba(255, 255, 255, 0.229)  98.875%,
  rgba(255, 255, 255, 0.228)  98.933%,
  rgba(255, 255, 255, 0.224)  98.933%,
  rgba(255, 255, 255, 0.222)  98.988%,
  rgba(255, 255, 255, 0.220)  99.042%,
  rgba(255, 255, 255, 0.216)  99.042%,
  rgba(255, 255, 255, 0.214)  99.094%,
  rgba(255, 255, 255, 0.212)  99.144%,
  rgba(255, 255, 255, 0.208)  99.144%,
  rgba(255, 255, 255, 0.206)  99.192%,
  rgba(255, 255, 255, 0.204)  99.238%,
  rgba(255, 255, 255, 0.200)  99.238%,
  rgba(255, 255, 255, 0.198)  99.282%,
  rgba(255, 255, 255, 0.196)  99.325%,
  rgba(255, 255, 255, 0.192)  99.325%,
  rgba(255, 255, 255, 0.190)  99.366%,
  rgba(255, 255, 255, 0.188)  99.405%,
  rgba(255, 255, 255, 0.184)  99.405%,
  rgba(255, 255, 255, 0.182)  99.443%,
  rgba(255, 255, 255, 0.180)  99.479%,
  rgba(255, 255, 255, 0.176)  99.479%,
  rgba(255, 255, 255, 0.174)  99.513%,
  rgba(255, 255, 255, 0.172)  99.546%,
  rgba(255, 255, 255, 0.169)  99.546%,
  rgba(255, 255, 255, 0.167)  99.577%,
  rgba(255, 255, 255, 0.165)  99.607%,
  rgba(255, 255, 255, 0.161)  99.607%,
  rgba(255, 255, 255, 0.159)  99.635%,
  rgba(255, 255, 255, 0.157)  99.662%,
  rgba(255, 255, 255, 0.153)  99.662%,
  rgba(255, 255, 255, 0.151)  99.688%,
  rgba(255, 255, 255, 0.149)  99.712%,
  rgba(255, 255, 255, 0.145)  99.712%,
  rgba(255, 255, 255, 0.143)  99.735%,
  rgba(255, 255, 255, 0.141)  99.757%,
  rgba(255, 255, 255, 0.137)  99.757%,
  rgba(255, 255, 255, 0.135)  99.777%,
  rgba(255, 255, 255, 0.133)  99.796%,
  rgba(255, 255, 255, 0.129)  99.796%,
  rgba(255, 255, 255, 0.128)  99.814%,
  rgba(255, 255, 255, 0.126)  99.831%,
  rgba(255, 255, 255, 0.122)  99.831%,
  rgba(255, 255, 255, 0.120)  99.847%,
  rgba(255, 255, 255, 0.118)  99.862%,
  rgba(255, 255, 255, 0.114)  99.862%,
  rgba(255, 255, 255, 0.112)  99.876%,
  rgba(255, 255, 255, 0.110)  99.889%,
  rgba(255, 255, 255, 0.106)  99.889%,
  rgba(255, 255, 255, 0.104)  99.901%,
  rgba(255, 255, 255, 0.102)  99.912%,
  rgba(255, 255, 255, 0.098)  99.912%,
  rgba(255, 255, 255, 0.096)  99.922%,
  rgba(255, 255, 255, 0.094)  99.932%,
  rgba(255, 255, 255, 0.090)  99.932%,
  rgba(255, 255, 255, 0.088)  99.940%,
  rgba(255, 255, 255, 0.086)  99.948%,
  rgba(255, 255, 255, 0.082)  99.948%,
  rgba(255, 255, 255, 0.080)  99.955%,
  rgba(255, 255, 255, 0.078)  99.962%,
  rgba(255, 255, 255, 0.074)  99.962%,
  rgba(255, 255, 255, 0.072)  99.968%,
  rgba(255, 255, 255, 0.071)  99.973%,
  rgba(255, 255, 255, 0.067)  99.973%,
  rgba(255, 255, 255, 0.065)  99.977%,
  rgba(255, 255, 255, 0.063)  99.981%,
  rgba(255, 255, 255, 0.059)  99.981%,
  rgba(255, 255, 255, 0.057)  99.985%,
  rgba(255, 255, 255, 0.055)  99.988%,
  rgba(255, 255, 255, 0.051)  99.988%,
  rgba(255, 255, 255, 0.049)  99.990%,
  rgba(255, 255, 255, 0.047)  99.993%,
  rgba(255, 255, 255, 0.043)  99.993%,
  rgba(255, 255, 255, 0.041)  99.995%,
  rgba(255, 255, 255, 0.039)  99.996%,
  rgba(255, 255, 255, 0.035)  99.996%,
  rgba(255, 255, 255, 0.033)  99.997%,
  rgba(255, 255, 255, 0.031)  99.998%,
  rgba(255, 255, 255, 0.028)  99.998%,
  rgba(255, 255, 255, 0.025)  99.999%,
  rgba(255, 255, 255, 0.024)  99.999%,
  rgba(255, 255, 255, 0.020)  99.999%,
  rgba(255, 255, 255, 0.018) 100.000%,
  rgba(255, 255, 255, 0.016) 100.000%,
  rgba(255, 255, 255, 0.012) 100.000%,
  rgba(255, 255, 255, 0.010) 100.000%,
  rgba(255, 255, 255, 0.010) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%
);