/*
  cpt-city: tl/power-1.25 (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)   0.314%,
  rgba(255, 255, 255, 0.996)   0.628%,
  rgba(255, 255, 255, 0.992)   0.628%,
  rgba(255, 255, 255, 0.990)   0.942%,
  rgba(255, 255, 255, 0.988)   1.257%,
  rgba(255, 255, 255, 0.984)   1.257%,
  rgba(255, 255, 255, 0.982)   1.572%,
  rgba(255, 255, 255, 0.980)   1.887%,
  rgba(255, 255, 255, 0.977)   1.887%,
  rgba(255, 255, 255, 0.975)   2.202%,
  rgba(255, 255, 255, 0.973)   2.518%,
  rgba(255, 255, 255, 0.969)   2.518%,
  rgba(255, 255, 255, 0.967)   2.834%,
  rgba(255, 255, 255, 0.965)   3.150%,
  rgba(255, 255, 255, 0.961)   3.150%,
  rgba(255, 255, 255, 0.959)   3.466%,
  rgba(255, 255, 255, 0.957)   3.783%,
  rgba(255, 255, 255, 0.953)   3.783%,
  rgba(255, 255, 255, 0.951)   4.100%,
  rgba(255, 255, 255, 0.949)   4.417%,
  rgba(255, 255, 255, 0.945)   4.417%,
  rgba(255, 255, 255, 0.943)   4.734%,
  rgba(255, 255, 255, 0.941)   5.052%,
  rgba(255, 255, 255, 0.937)   5.052%,
  rgba(255, 255, 255, 0.935)   5.370%,
  rgba(255, 255, 255, 0.933)   5.688%,
  rgba(255, 255, 255, 0.929)   5.688%,
  rgba(255, 255, 255, 0.927)   6.007%,
  rgba(255, 255, 255, 0.925)   6.325%,
  rgba(255, 255, 255, 0.922)   6.325%,
  rgba(255, 255, 255, 0.920)   6.644%,
  rgba(255, 255, 255, 0.918)   6.964%,
  rgba(255, 255, 255, 0.914)   6.964%,
  rgba(255, 255, 255, 0.912)   7.283%,
  rgba(255, 255, 255, 0.910)   7.603%,
  rgba(255, 255, 255, 0.906)   7.603%,
  rgba(255, 255, 255, 0.904)   7.923%,
  rgba(255, 255, 255, 0.902)   8.244%,
  rgba(255, 255, 255, 0.898)   8.244%,
  rgba(255, 255, 255, 0.896)   8.564%,
  rgba(255, 255, 255, 0.894)   8.885%,
  rgba(255, 255, 255, 0.890)   8.885%,
  rgba(255, 255, 255, 0.888)   9.207%,
  rgba(255, 255, 255, 0.886)   9.528%,
  rgba(255, 255, 255, 0.882)   9.528%,
  rgba(255, 255, 255, 0.880)   9.850%,
  rgba(255, 255, 255, 0.878)  10.172%,
  rgba(255, 255, 255, 0.875)  10.172%,
  rgba(255, 255, 255, 0.873)  10.494%,
  rgba(255, 255, 255, 0.871)  10.817%,
  rgba(255, 255, 255, 0.867)  10.817%,
  rgba(255, 255, 255, 0.865)  11.140%,
  rgba(255, 255, 255, 0.863)  11.463%,
  rgba(255, 255, 255, 0.859)  11.463%,
  rgba(255, 255, 255, 0.857)  11.787%,
  rgba(255, 255, 255, 0.855)  12.111%,
  rgba(255, 255, 255, 0.851)  12.111%,
  rgba(255, 255, 255, 0.849)  12.435%,
  rgba(255, 255, 255, 0.847)  12.759%,
  rgba(255, 255, 255, 0.843)  12.759%,
  rgba(255, 255, 255, 0.841)  13.084%,
  rgba(255, 255, 255, 0.839)  13.409%,
  rgba(255, 255, 255, 0.835)  13.409%,
  rgba(255, 255, 255, 0.833)  13.735%,
  rgba(255, 255, 255, 0.831)  14.060%,
  rgba(255, 255, 255, 0.828)  14.060%,
  rgba(255, 255, 255, 0.826)  14.386%,
  rgba(255, 255, 255, 0.824)  14.713%,
  rgba(255, 255, 255, 0.820)  14.713%,
  rgba(255, 255, 255, 0.818)  15.039%,
  rgba(255, 255, 255, 0.816)  15.366%,
  rgba(255, 255, 255, 0.812)  15.366%,
  rgba(255, 255, 255, 0.810)  15.693%,
  rgba(255, 255, 255, 0.808)  16.021%,
  rgba(255, 255, 255, 0.804)  16.021%,
  rgba(255, 255, 255, 0.802)  16.349%,
  rgba(255, 255, 255, 0.800)  16.677%,
  rgba(255, 255, 255, 0.796)  16.677%,
  rgba(255, 255, 255, 0.794)  17.006%,
  rgba(255, 255, 255, 0.792)  17.334%,
  rgba(255, 255, 255, 0.788)  17.334%,
  rgba(255, 255, 255, 0.786)  17.664%,
  rgba(255, 255, 255, 0.784)  17.993%,
  rgba(255, 255, 255, 0.780)  17.993%,
  rgba(255, 255, 255, 0.778)  18.323%,
  rgba(255, 255, 255, 0.776)  18.653%,
  rgba(255, 255, 255, 0.772)  18.653%,
  rgba(255, 255, 255, 0.771)  18.984%,
  rgba(255, 255, 255, 0.769)  19.314%,
  rgba(255, 255, 255, 0.765)  19.314%,
  rgba(255, 255, 255, 0.763)  19.646%,
  rgba(255, 255, 255, 0.761)  19.977%,
  rgba(255, 255, 255, 0.757)  19.977%,
  rgba(255, 255, 255, 0.755)  20.309%,
  rgba(255, 255, 255, 0.753)  20.641%,
  rgba(255, 255, 255, 0.749)  20.641%,
  rgba(255, 255, 255, 0.747)  20.974%,
  rgba(255, 255, 255, 0.745)  21.307%,
  rgba(255, 255, 255, 0.741)  21.307%,
  rgba(255, 255, 255, 0.739)  21.640%,
  rgba(255, 255, 255, 0.737)  21.974%,
  rgba(255, 255, 255, 0.733)  21.974%,
  rgba(255, 255, 255, 0.731)  22.308%,
  rgba(255, 255, 255, 0.729)  22.642%,
  rgba(255, 255, 255, 0.726)  22.642%,
  rgba(255, 255, 255, 0.724)  22.977%,
  rgba(255, 255, 255, 0.722)  23.312%,
  rgba(255, 255, 255, 0.718)  23.312%,
  rgba(255, 255, 255, 0.716)  23.647%,
  rgba(255, 255, 255, 0.714)  23.983%,
  rgba(255, 255, 255, 0.710)  23.983%,
  rgba(255, 255, 255, 0.708)  24.319%,
  rgba(255, 255, 255, 0.706)  24.656%,
  rgba(255, 255, 255, 0.702)  24.656%,
  rgba(255, 255, 255, 0.700)  24.993%,
  rgba(255, 255, 255, 0.698)  25.330%,
  rgba(255, 255, 255, 0.694)  25.330%,
  rgba(255, 255, 255, 0.692)  25.668%,
  rgba(255, 255, 255, 0.690)  26.006%,
  rgba(255, 255, 255, 0.686)  26.006%,
  rgba(255, 255, 255, 0.684)  26.344%,
  rgba(255, 255, 255, 0.682)  26.683%,
  rgba(255, 255, 255, 0.678)  26.683%,
  rgba(255, 255, 255, 0.676)  27.022%,
  rgba(255, 255, 255, 0.674)  27.362%,
  rgba(255, 255, 255, 0.671)  27.362%,
  rgba(255, 255, 255, 0.669)  27.702%,
  rgba(255, 255, 255, 0.667)  28.042%,
  rgba(255, 255, 255, 0.663)  28.042%,
  rgba(255, 255, 255, 0.661)  28.383%,
  rgba(255, 255, 255, 0.659)  28.724%,
  rgba(255, 255, 255, 0.655)  28.724%,
  rgba(255, 255, 255, 0.653)  29.066%,
  rgba(255, 255, 255, 0.651)  29.408%,
  rgba(255, 255, 255, 0.647)  29.408%,
  rgba(255, 255, 255, 0.645)  29.750%,
  rgba(255, 255, 255, 0.643)  30.093%,
  rgba(255, 255, 255, 0.639)  30.093%,
  rgba(255, 255, 255, 0.637)  30.437%,
  rgba(255, 255, 255, 0.635)  30.780%,
  rgba(255, 255, 255, 0.631)  30.780%,
  rgba(255, 255, 255, 0.629)  31.125%,
  rgba(255, 255, 255, 0.627)  31.469%,
  rgba(255, 255, 255, 0.624)  31.469%,
  rgba(255, 255, 255, 0.622)  31.814%,
  rgba(255, 255, 255, 0.620)  32.160%,
  rgba(255, 255, 255, 0.616)  32.160%,
  rgba(255, 255, 255, 0.614)  32.506%,
  rgba(255, 255, 255, 0.612)  32.852%,
  rgba(255, 255, 255, 0.608)  32.852%,
  rgba(255, 255, 255, 0.606)  33.199%,
  rgba(255, 255, 255, 0.604)  33.546%,
  rgba(255, 255, 255, 0.600)  33.546%,
  rgba(255, 255, 255, 0.598)  33.894%,
  rgba(255, 255, 255, 0.596)  34.242%,
  rgba(255, 255, 255, 0.592)  34.242%,
  rgba(255, 255, 255, 0.590)  34.590%,
  rgba(255, 255, 255, 0.588)  34.940%,
  rgba(255, 255, 255, 0.584)  34.940%,
  rgba(255, 255, 255, 0.582)  35.289%,
  rgba(255, 255, 255, 0.580)  35.639%,
  rgba(255, 255, 255, 0.577)  35.639%,
  rgba(255, 255, 255, 0.575)  35.990%,
  rgba(255, 255, 255, 0.573)  36.341%,
  rgba(255, 255, 255, 0.569)  36.341%,
  rgba(255, 255, 255, 0.567)  36.692%,
  rgba(255, 255, 255, 0.565)  37.044%,
  rgba(255, 255, 255, 0.561)  37.044%,
  rgba(255, 255, 255, 0.559)  37.397%,
  rgba(255, 255, 255, 0.557)  37.749%,
  rgba(255, 255, 255, 0.553)  37.749%,
  rgba(255, 255, 255, 0.551)  38.103%,
  rgba(255, 255, 255, 0.549)  38.457%,
  rgba(255, 255, 255, 0.545)  38.457%,
  rgba(255, 255, 255, 0.543)  38.811%,
  rgba(255, 255, 255, 0.541)  39.166%,
  rgba(255, 255, 255, 0.537)  39.166%,
  rgba(255, 255, 255, 0.535)  39.522%,
  rgba(255, 255, 255, 0.533)  39.878%,
  rgba(255, 255, 255, 0.529)  39.878%,
  rgba(255, 255, 255, 0.527)  40.234%,
  rgba(255, 255, 255, 0.525)  40.591%,
  rgba(255, 255, 255, 0.522)  40.591%,
  rgba(255, 255, 255, 0.520)  40.949%,
  rgba(255, 255, 255, 0.518)  41.307%,
  rgba(255, 255, 255, 0.514)  41.307%,
  rgba(255, 255, 255, 0.512)  41.666%,
  rgba(255, 255, 255, 0.510)  42.025%,
  rgba(255, 255, 255, 0.506)  42.025%,
  rgba(255, 255, 255, 0.504)  42.385%,
  rgba(255, 255, 255, 0.502)  42.745%,
  rgba(255, 255, 255, 0.498)  42.745%,
  rgba(255, 255, 255, 0.496)  43.106%,
  rgba(255, 255, 255, 0.494)  43.468%,
  rgba(255, 255, 255, 0.490)  43.468%,
  rgba(255, 255, 255, 0.488)  43.830%,
  rgba(255, 255, 255, 0.486)  44.193%,
  rgba(255, 255, 255, 0.482)  44.193%,
  rgba(255, 255, 255, 0.480)  44.556%,
  rgba(255, 255, 255, 0.478)  44.920%,
  rgba(255, 255, 255, 0.474)  44.920%,
  rgba(255, 255, 255, 0.472)  45.284%,
  rgba(255, 255, 255, 0.471)  45.649%,
  rgba(255, 255, 255, 0.467)  45.649%,
  rgba(255, 255, 255, 0.465)  46.015%,
  rgba(255, 255, 255, 0.463)  46.381%,
  rgba(255, 255, 255, 0.459)  46.381%,
  rgba(255, 255, 255, 0.457)  46.748%,
  rgba(255, 255, 255, 0.455)  47.116%,
  rgba(255, 255, 255, 0.451)  47.116%,
  rgba(255, 255, 255, 0.449)  47.484%,
  rgba(255, 255, 255, 0.447)  47.853%,
  rgba(255, 255, 255, 0.443)  47.853%,
  rgba(255, 255, 255, 0.441)  48.222%,
  rgba(255, 255, 255, 0.439)  48.593%,
  rgba(255, 255, 255, 0.435)  48.593%,
  rgba(255, 255, 255, 0.433)  48.963%,
  rgba(255, 255, 255, 0.431)  49.335%,
  rgba(255, 255, 255, 0.427)  49.335%,
  rgba(255, 255, 255, 0.425)  49.707%,
  rgba(255, 255, 255, 0.423)  50.080%,
  rgba(255, 255, 255, 0.420)  50.080%,
  rgba(255, 255, 255, 0.418)  50.453%,
  rgba(255, 255, 255, 0.416)  50.828%,
  rgba(255, 255, 255, 0.412)  50.828%,
  rgba(255, 255, 255, 0.410)  51.203%,
  rgba(255, 255, 255, 0.408)  51.579%,
  rgba(255, 255, 255, 0.404)  51.579%,
  rgba(255, 255, 255, 0.402)  51.955%,
  rgba(255, 255, 255, 0.400)  52.332%,
  rgba(255, 255, 255, 0.396)  52.332%,
  rgba(255, 255, 255, 0.394)  52.710%,
  rgba(255, 255, 255, 0.392)  53.089%,
  rgba(255, 255, 255, 0.388)  53.089%,
  rgba(255, 255, 255, 0.386)  53.468%,
  rgba(255, 255, 255, 0.384)  53.849%,
  rgba(255, 255, 255, 0.380)  53.849%,
  rgba(255, 255, 255, 0.378)  54.230%,
  rgba(255, 255, 255, 0.377)  54.611%,
  rgba(255, 255, 255, 0.372)  54.611%,
  rgba(255, 255, 255, 0.371)  54.994%,
  rgba(255, 255, 255, 0.369)  55.377%,
  rgba(255, 255, 255, 0.365)  55.377%,
  rgba(255, 255, 255, 0.363)  55.762%,
  rgba(255, 255, 255, 0.361)  56.147%,
  rgba(255, 255, 255, 0.357)  56.147%,
  rgba(255, 255, 255, 0.355)  56.533%,
  rgba(255, 255, 255, 0.353)  56.920%,
  rgba(255, 255, 255, 0.349)  56.920%,
  rgba(255, 255, 255, 0.347)  57.307%,
  rgba(255, 255, 255, 0.345)  57.696%,
  rgba(255, 255, 255, 0.341)  57.696%,
  rgba(255, 255, 255, 0.339)  58.085%,
  rgba(255, 255, 255, 0.337)  58.476%,
  rgba(255, 255, 255, 0.333)  58.476%,
  rgba(255, 255, 255, 0.331)  58.867%,
  rgba(255, 255, 255, 0.329)  59.259%,
  rgba(255, 255, 255, 0.326)  59.259%,
  rgba(255, 255, 255, 0.324)  59.652%,
  rgba(255, 255, 255, 0.322)  60.046%,
  rgba(255, 255, 255, 0.318)  60.046%,
  rgba(255, 255, 255, 0.316)  60.441%,
  rgba(255, 255, 255, 0.314)  60.838%,
  rgba(255, 255, 255, 0.310)  60.838%,
  rgba(255, 255, 255, 0.308)  61.235%,
  rgba(255, 255, 255, 0.306)  61.633%,
  rgba(255, 255, 255, 0.302)  61.633%,
  rgba(255, 255, 255, 0.300)  62.032%,
  rgba(255, 255, 255, 0.298)  62.432%,
  rgba(255, 255, 255, 0.294)  62.432%,
  rgba(255, 255, 255, 0.292)  62.833%,
  rgba(255, 255, 255, 0.290)  63.236%,
  rgba(255, 255, 255, 0.286)  63.236%,
  rgba(255, 255, 255, 0.284)  63.639%,
  rgba(255, 255, 255, 0.282)  64.044%,
  rgba(255, 255, 255, 0.278)  64.044%,
  rgba(255, 255, 255, 0.277)  64.450%,
  rgba(255, 255, 255, 0.275)  64.856%,
  rgba(255, 255, 255, 0.271)  64.856%,
  rgba(255, 255, 255, 0.269)  65.264%,
  rgba(255, 255, 255, 0.267)  65.674%,
  rgba(255, 255, 255, 0.263)  65.674%,
  rgba(255, 255, 255, 0.261)  66.084%,
  rgba(255, 255, 255, 0.259)  66.496%,
  rgba(255, 255, 255, 0.255)  66.496%,
  rgba(255, 255, 255, 0.253)  66.909%,
  rgba(255, 255, 255, 0.251)  67.323%,
  rgba(255, 255, 255, 0.247)  67.323%,
  rgba(255, 255, 255, 0.245)  67.739%,
  rgba(255, 255, 255, 0.243)  68.156%,
  rgba(255, 255, 255, 0.239)  68.156%,
  rgba(255, 255, 255, 0.237)  68.574%,
  rgba(255, 255, 255, 0.235)  68.994%,
  rgba(255, 255, 255, 0.231)  68.994%,
  rgba(255, 255, 255, 0.229)  69.415%,
  rgba(255, 255, 255, 0.228)  69.838%,
  rgba(255, 255, 255, 0.224)  69.838%,
  rgba(255, 255, 255, 0.222)  70.262%,
  rgba(255, 255, 255, 0.220)  70.687%,
  rgba(255, 255, 255, 0.216)  70.687%,
  rgba(255, 255, 255, 0.214)  71.114%,
  rgba(255, 255, 255, 0.212)  71.543%,
  rgba(255, 255, 255, 0.208)  71.543%,
  rgba(255, 255, 255, 0.206)  71.973%,
  rgba(255, 255, 255, 0.204)  72.405%,
  rgba(255, 255, 255, 0.200)  72.405%,
  rgba(255, 255, 255, 0.198)  72.839%,
  rgba(255, 255, 255, 0.196)  73.275%,
  rgba(255, 255, 255, 0.192)  73.275%,
  rgba(255, 255, 255, 0.190)  73.712%,
  rgba(255, 255, 255, 0.188)  74.151%,
  rgba(255, 255, 255, 0.184)  74.151%,
  rgba(255, 255, 255, 0.182)  74.592%,
  rgba(255, 255, 255, 0.180)  75.035%,
  rgba(255, 255, 255, 0.176)  75.035%,
  rgba(255, 255, 255, 0.174)  75.480%,
  rgba(255, 255, 255, 0.172)  75.926%,
  rgba(255, 255, 255, 0.169)  75.926%,
  rgba(255, 255, 255, 0.167)  76.375%,
  rgba(255, 255, 255, 0.165)  76.826%,
  rgba(255, 255, 255, 0.161)  76.826%,
  rgba(255, 255, 255, 0.159)  77.280%,
  rgba(255, 255, 255, 0.157)  77.735%,
  rgba(255, 255, 255, 0.153)  77.735%,
  rgba(255, 255, 255, 0.151)  78.193%,
  rgba(255, 255, 255, 0.149)  78.653%,
  rgba(255, 255, 255, 0.145)  78.653%,
  rgba(255, 255, 255, 0.143)  79.116%,
  rgba(255, 255, 255, 0.141)  79.582%,
  rgba(255, 255, 255, 0.137)  79.582%,
  rgba(255, 255, 255, 0.135)  80.050%,
  rgba(255, 255, 255, 0.133)  80.520%,
  rgba(255, 255, 255, 0.129)  80.520%,
  rgba(255, 255, 255, 0.128)  80.994%,
  rgba(255, 255, 255, 0.126)  81.471%,
  rgba(255, 255, 255, 0.122)  81.471%,
  rgba(255, 255, 255, 0.120)  81.951%,
  rgba(255, 255, 255, 0.118)  82.433%,
  rgba(255, 255, 255, 0.114)  82.433%,
  rgba(255, 255, 255, 0.112)  82.920%,
  rgba(255, 255, 255, 0.110)  83.409%,
  rgba(255, 255, 255, 0.106)  83.409%,
  rgba(255, 255, 255, 0.104)  83.903%,
  rgba(255, 255, 255, 0.102)  84.400%,
  rgba(255, 255, 255, 0.098)  84.400%,
  rgba(255, 255, 255, 0.096)  84.901%,
  rgba(255, 255, 255, 0.094)  85.407%,
  rgba(255, 255, 255, 0.090)  85.407%,
  rgba(255, 255, 255, 0.088)  85.917%,
  rgba(255, 255, 255, 0.086)  86.431%,
  rgba(255, 255, 255, 0.082)  86.431%,
  rgba(255, 255, 255, 0.080)  86.951%,
  rgba(255, 255, 255, 0.078)  87.475%,
  rgba(255, 255, 255, 0.074)  87.475%,
  rgba(255, 255, 255, 0.072)  88.005%,
  rgba(255, 255, 255, 0.071)  88.541%,
  rgba(255, 255, 255, 0.067)  88.541%,
  rgba(255, 255, 255, 0.065)  89.084%,
  rgba(255, 255, 255, 0.063)  89.633%,
  rgba(255, 255, 255, 0.059)  89.633%,
  rgba(255, 255, 255, 0.057)  90.190%,
  rgba(255, 255, 255, 0.055)  90.755%,
  rgba(255, 255, 255, 0.051)  90.755%,
  rgba(255, 255, 255, 0.049)  91.328%,
  rgba(255, 255, 255, 0.047)  91.911%,
  rgba(255, 255, 255, 0.043)  91.911%,
  rgba(255, 255, 255, 0.041)  92.505%,
  rgba(255, 255, 255, 0.039)  93.111%,
  rgba(255, 255, 255, 0.035)  93.111%,
  rgba(255, 255, 255, 0.033)  93.730%,
  rgba(255, 255, 255, 0.031)  94.366%,
  rgba(255, 255, 255, 0.028)  94.366%,
  rgba(255, 255, 255, 0.025)  95.019%,
  rgba(255, 255, 255, 0.024)  95.695%,
  rgba(255, 255, 255, 0.020)  95.695%,
  rgba(255, 255, 255, 0.018)  96.399%,
  rgba(255, 255, 255, 0.016)  97.139%,
  rgba(255, 255, 255, 0.012)  97.139%,
  rgba(255, 255, 255, 0.010)  97.932%,
  rgba(255, 255, 255, 0.008)  98.812%,
  rgba(255, 255, 255, 0.004)  98.812%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%
);