/*
  cpt-city: tl/power-2.00 (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)   0.196%,
  rgba(255, 255, 255, 0.996)   0.393%,
  rgba(255, 255, 255, 0.992)   0.393%,
  rgba(255, 255, 255, 0.990)   0.590%,
  rgba(255, 255, 255, 0.988)   0.787%,
  rgba(255, 255, 255, 0.984)   0.787%,
  rgba(255, 255, 255, 0.982)   0.985%,
  rgba(255, 255, 255, 0.980)   1.183%,
  rgba(255, 255, 255, 0.977)   1.183%,
  rgba(255, 255, 255, 0.975)   1.382%,
  rgba(255, 255, 255, 0.973)   1.581%,
  rgba(255, 255, 255, 0.969)   1.581%,
  rgba(255, 255, 255, 0.967)   1.781%,
  rgba(255, 255, 255, 0.965)   1.980%,
  rgba(255, 255, 255, 0.961)   1.980%,
  rgba(255, 255, 255, 0.959)   2.181%,
  rgba(255, 255, 255, 0.957)   2.381%,
  rgba(255, 255, 255, 0.953)   2.381%,
  rgba(255, 255, 255, 0.951)   2.582%,
  rgba(255, 255, 255, 0.949)   2.784%,
  rgba(255, 255, 255, 0.945)   2.784%,
  rgba(255, 255, 255, 0.943)   2.986%,
  rgba(255, 255, 255, 0.941)   3.188%,
  rgba(255, 255, 255, 0.937)   3.188%,
  rgba(255, 255, 255, 0.935)   3.391%,
  rgba(255, 255, 255, 0.933)   3.594%,
  rgba(255, 255, 255, 0.929)   3.594%,
  rgba(255, 255, 255, 0.927)   3.798%,
  rgba(255, 255, 255, 0.925)   4.002%,
  rgba(255, 255, 255, 0.922)   4.002%,
  rgba(255, 255, 255, 0.920)   4.206%,
  rgba(255, 255, 255, 0.918)   4.411%,
  rgba(255, 255, 255, 0.914)   4.411%,
  rgba(255, 255, 255, 0.912)   4.616%,
  rgba(255, 255, 255, 0.910)   4.822%,
  rgba(255, 255, 255, 0.906)   4.822%,
  rgba(255, 255, 255, 0.904)   5.028%,
  rgba(255, 255, 255, 0.902)   5.235%,
  rgba(255, 255, 255, 0.898)   5.235%,
  rgba(255, 255, 255, 0.896)   5.442%,
  rgba(255, 255, 255, 0.894)   5.650%,
  rgba(255, 255, 255, 0.890)   5.650%,
  rgba(255, 255, 255, 0.888)   5.858%,
  rgba(255, 255, 255, 0.886)   6.066%,
  rgba(255, 255, 255, 0.882)   6.066%,
  rgba(255, 255, 255, 0.880)   6.275%,
  rgba(255, 255, 255, 0.878)   6.485%,
  rgba(255, 255, 255, 0.875)   6.485%,
  rgba(255, 255, 255, 0.873)   6.695%,
  rgba(255, 255, 255, 0.871)   6.905%,
  rgba(255, 255, 255, 0.867)   6.905%,
  rgba(255, 255, 255, 0.865)   7.116%,
  rgba(255, 255, 255, 0.863)   7.327%,
  rgba(255, 255, 255, 0.859)   7.327%,
  rgba(255, 255, 255, 0.857)   7.539%,
  rgba(255, 255, 255, 0.855)   7.751%,
  rgba(255, 255, 255, 0.851)   7.751%,
  rgba(255, 255, 255, 0.849)   7.964%,
  rgba(255, 255, 255, 0.847)   8.178%,
  rgba(255, 255, 255, 0.843)   8.178%,
  rgba(255, 255, 255, 0.841)   8.391%,
  rgba(255, 255, 255, 0.839)   8.606%,
  rgba(255, 255, 255, 0.835)   8.606%,
  rgba(255, 255, 255, 0.833)   8.820%,
  rgba(255, 255, 255, 0.831)   9.036%,
  rgba(255, 255, 255, 0.828)   9.036%,
  rgba(255, 255, 255, 0.826)   9.252%,
  rgba(255, 255, 255, 0.824)   9.468%,
  rgba(255, 255, 255, 0.820)   9.468%,
  rgba(255, 255, 255, 0.818)   9.685%,
  rgba(255, 255, 255, 0.816)   9.902%,
  rgba(255, 255, 255, 0.812)   9.902%,
  rgba(255, 255, 255, 0.810)  10.120%,
  rgba(255, 255, 255, 0.808)  10.338%,
  rgba(255, 255, 255, 0.804)  10.338%,
  rgba(255, 255, 255, 0.802)  10.557%,
  rgba(255, 255, 255, 0.800)  10.777%,
  rgba(255, 255, 255, 0.796)  10.777%,
  rgba(255, 255, 255, 0.794)  10.997%,
  rgba(255, 255, 255, 0.792)  11.217%,
  rgba(255, 255, 255, 0.788)  11.217%,
  rgba(255, 255, 255, 0.786)  11.438%,
  rgba(255, 255, 255, 0.784)  11.660%,
  rgba(255, 255, 255, 0.780)  11.660%,
  rgba(255, 255, 255, 0.778)  11.882%,
  rgba(255, 255, 255, 0.776)  12.105%,
  rgba(255, 255, 255, 0.772)  12.105%,
  rgba(255, 255, 255, 0.771)  12.329%,
  rgba(255, 255, 255, 0.769)  12.553%,
  rgba(255, 255, 255, 0.765)  12.553%,
  rgba(255, 255, 255, 0.763)  12.777%,
  rgba(255, 255, 255, 0.761)  13.002%,
  rgba(255, 255, 255, 0.757)  13.002%,
  rgba(255, 255, 255, 0.755)  13.228%,
  rgba(255, 255, 255, 0.753)  13.454%,
  rgba(255, 255, 255, 0.749)  13.454%,
  rgba(255, 255, 255, 0.747)  13.681%,
  rgba(255, 255, 255, 0.745)  13.908%,
  rgba(255, 255, 255, 0.741)  13.908%,
  rgba(255, 255, 255, 0.739)  14.136%,
  rgba(255, 255, 255, 0.737)  14.365%,
  rgba(255, 255, 255, 0.733)  14.365%,
  rgba(255, 255, 255, 0.731)  14.594%,
  rgba(255, 255, 255, 0.729)  14.824%,
  rgba(255, 255, 255, 0.726)  14.824%,
  rgba(255, 255, 255, 0.724)  15.055%,
  rgba(255, 255, 255, 0.722)  15.286%,
  rgba(255, 255, 255, 0.718)  15.286%,
  rgba(255, 255, 255, 0.716)  15.518%,
  rgba(255, 255, 255, 0.714)  15.750%,
  rgba(255, 255, 255, 0.710)  15.750%,
  rgba(255, 255, 255, 0.708)  15.983%,
  rgba(255, 255, 255, 0.706)  16.217%,
  rgba(255, 255, 255, 0.702)  16.217%,
  rgba(255, 255, 255, 0.700)  16.451%,
  rgba(255, 255, 255, 0.698)  16.686%,
  rgba(255, 255, 255, 0.694)  16.686%,
  rgba(255, 255, 255, 0.692)  16.922%,
  rgba(255, 255, 255, 0.690)  17.158%,
  rgba(255, 255, 255, 0.686)  17.158%,
  rgba(255, 255, 255, 0.684)  17.395%,
  rgba(255, 255, 255, 0.682)  17.633%,
  rgba(255, 255, 255, 0.678)  17.633%,
  rgba(255, 255, 255, 0.676)  17.872%,
  rgba(255, 255, 255, 0.674)  18.110%,
  rgba(255, 255, 255, 0.671)  18.110%,
  rgba(255, 255, 255, 0.669)  18.350%,
  rgba(255, 255, 255, 0.667)  18.591%,
  rgba(255, 255, 255, 0.663)  18.591%,
  rgba(255, 255, 255, 0.661)  18.832%,
  rgba(255, 255, 255, 0.659)  19.074%,
  rgba(255, 255, 255, 0.655)  19.074%,
  rgba(255, 255, 255, 0.653)  19.317%,
  rgba(255, 255, 255, 0.651)  19.560%,
  rgba(255, 255, 255, 0.647)  19.560%,
  rgba(255, 255, 255, 0.645)  19.804%,
  rgba(255, 255, 255, 0.643)  20.049%,
  rgba(255, 255, 255, 0.639)  20.049%,
  rgba(255, 255, 255, 0.637)  20.295%,
  rgba(255, 255, 255, 0.635)  20.541%,
  rgba(255, 255, 255, 0.631)  20.541%,
  rgba(255, 255, 255, 0.629)  20.788%,
  rgba(255, 255, 255, 0.627)  21.036%,
  rgba(255, 255, 255, 0.624)  21.036%,
  rgba(255, 255, 255, 0.622)  21.285%,
  rgba(255, 255, 255, 0.620)  21.534%,
  rgba(255, 255, 255, 0.616)  21.534%,
  rgba(255, 255, 255, 0.614)  21.785%,
  rgba(255, 255, 255, 0.612)  22.036%,
  rgba(255, 255, 255, 0.608)  22.036%,
  rgba(255, 255, 255, 0.606)  22.288%,
  rgba(255, 255, 255, 0.604)  22.540%,
  rgba(255, 255, 255, 0.600)  22.540%,
  rgba(255, 255, 255, 0.598)  22.794%,
  rgba(255, 255, 255, 0.596)  23.048%,
  rgba(255, 255, 255, 0.592)  23.048%,
  rgba(255, 255, 255, 0.590)  23.303%,
  rgba(255, 255, 255, 0.588)  23.560%,
  rgba(255, 255, 255, 0.584)  23.560%,
  rgba(255, 255, 255, 0.582)  23.817%,
  rgba(255, 255, 255, 0.580)  24.074%,
  rgba(255, 255, 255, 0.577)  24.074%,
  rgba(255, 255, 255, 0.575)  24.333%,
  rgba(255, 255, 255, 0.573)  24.593%,
  rgba(255, 255, 255, 0.569)  24.593%,
  rgba(255, 255, 255, 0.567)  24.853%,
  rgba(255, 255, 255, 0.565)  25.114%,
  rgba(255, 255, 255, 0.561)  25.114%,
  rgba(255, 255, 255, 0.559)  25.377%,
  rgba(255, 255, 255, 0.557)  25.640%,
  rgba(255, 255, 255, 0.553)  25.640%,
  rgba(255, 255, 255, 0.551)  25.904%,
  rgba(255, 255, 255, 0.549)  26.169%,
  rgba(255, 255, 255, 0.545)  26.169%,
  rgba(255, 255, 255, 0.543)  26.435%,
  rgba(255, 255, 255, 0.541)  26.702%,
  rgba(255, 255, 255, 0.537)  26.702%,
  rgba(255, 255, 255, 0.535)  26.970%,
  rgba(255, 255, 255, 0.533)  27.239%,
  rgba(255, 255, 255, 0.529)  27.239%,
  rgba(255, 255, 255, 0.527)  27.509%,
  rgba(255, 255, 255, 0.525)  27.780%,
  rgba(255, 255, 255, 0.522)  27.780%,
  rgba(255, 255, 255, 0.520)  28.052%,
  rgba(255, 255, 255, 0.518)  28.325%,
  rgba(255, 255, 255, 0.514)  28.325%,
  rgba(255, 255, 255, 0.512)  28.599%,
  rgba(255, 255, 255, 0.510)  28.875%,
  rgba(255, 255, 255, 0.506)  28.875%,
  rgba(255, 255, 255, 0.504)  29.151%,
  rgba(255, 255, 255, 0.502)  29.428%,
  rgba(255, 255, 255, 0.498)  29.428%,
  rgba(255, 255, 255, 0.496)  29.706%,
  rgba(255, 255, 255, 0.494)  29.986%,
  rgba(255, 255, 255, 0.490)  29.986%,
  rgba(255, 255, 255, 0.488)  30.267%,
  rgba(255, 255, 255, 0.486)  30.548%,
  rgba(255, 255, 255, 0.482)  30.548%,
  rgba(255, 255, 255, 0.480)  30.831%,
  rgba(255, 255, 255, 0.478)  31.115%,
  rgba(255, 255, 255, 0.474)  31.115%,
  rgba(255, 255, 255, 0.472)  31.401%,
  rgba(255, 255, 255, 0.471)  31.687%,
  rgba(255, 255, 255, 0.467)  31.687%,
  rgba(255, 255, 255, 0.465)  31.975%,
  rgba(255, 255, 255, 0.463)  32.264%,
  rgba(255, 255, 255, 0.459)  32.264%,
  rgba(255, 255, 255, 0.457)  32.554%,
  rgba(255, 255, 255, 0.455)  32.845%,
  rgba(255, 255, 255, 0.451)  32.845%,
  rgba(255, 255, 255, 0.449)  33.138%,
  rgba(255, 255, 255, 0.447)  33.431%,
  rgba(255, 255, 255, 0.443)  33.431%,
  rgba(255, 255, 255, 0.441)  33.727%,
  rgba(255, 255, 255, 0.439)  34.023%,
  rgba(255, 255, 255, 0.435)  34.023%,
  rgba(255, 255, 255, 0.433)  34.321%,
  rgba(255, 255, 255, 0.431)  34.620%,
  rgba(255, 255, 255, 0.427)  34.620%,
  rgba(255, 255, 255, 0.425)  34.921%,
  rgba(255, 255, 255, 0.423)  35.223%,
  rgba(255, 255, 255, 0.420)  35.223%,
  rgba(255, 255, 255, 0.418)  35.526%,
  rgba(255, 255, 255, 0.416)  35.831%,
  rgba(255, 255, 255, 0.412)  35.831%,
  rgba(255, 255, 255, 0.410)  36.137%,
  rgba(255, 255, 255, 0.408)  36.445%,
  rgba(255, 255, 255, 0.404)  36.445%,
  rgba(255, 255, 255, 0.402)  36.754%,
  rgba(255, 255, 255, 0.400)  37.065%,
  rgba(255, 255, 255, 0.396)  37.065%,
  rgba(255, 255, 255, 0.394)  37.378%,
  rgba(255, 255, 255, 0.392)  37.691%,
  rgba(255, 255, 255, 0.388)  37.691%,
  rgba(255, 255, 255, 0.386)  38.007%,
  rgba(255, 255, 255, 0.384)  38.324%,
  rgba(255, 255, 255, 0.380)  38.324%,
  rgba(255, 255, 255, 0.378)  38.643%,
  rgba(255, 255, 255, 0.377)  38.963%,
  rgba(255, 255, 255, 0.372)  38.963%,
  rgba(255, 255, 255, 0.371)  39.285%,
  rgba(255, 255, 255, 0.369)  39.609%,
  rgba(255, 255, 255, 0.365)  39.609%,
  rgba(255, 255, 255, 0.363)  39.935%,
  rgba(255, 255, 255, 0.361)  40.262%,
  rgba(255, 255, 255, 0.357)  40.262%,
  rgba(255, 255, 255, 0.355)  40.591%,
  rgba(255, 255, 255, 0.353)  40.922%,
  rgba(255, 255, 255, 0.349)  40.922%,
  rgba(255, 255, 255, 0.347)  41.255%,
  rgba(255, 255, 255, 0.345)  41.590%,
  rgba(255, 255, 255, 0.341)  41.590%,
  rgba(255, 255, 255, 0.339)  41.926%,
  rgba(255, 255, 255, 0.337)  42.265%,
  rgba(255, 255, 255, 0.333)  42.265%,
  rgba(255, 255, 255, 0.331)  42.606%,
  rgba(255, 255, 255, 0.329)  42.948%,
  rgba(255, 255, 255, 0.326)  42.948%,
  rgba(255, 255, 255, 0.324)  43.293%,
  rgba(255, 255, 255, 0.322)  43.640%,
  rgba(255, 255, 255, 0.318)  43.640%,
  rgba(255, 255, 255, 0.316)  43.989%,
  rgba(255, 255, 255, 0.314)  44.340%,
  rgba(255, 255, 255, 0.310)  44.340%,
  rgba(255, 255, 255, 0.308)  44.693%,
  rgba(255, 255, 255, 0.306)  45.049%,
  rgba(255, 255, 255, 0.302)  45.049%,
  rgba(255, 255, 255, 0.300)  45.407%,
  rgba(255, 255, 255, 0.298)  45.767%,
  rgba(255, 255, 255, 0.294)  45.767%,
  rgba(255, 255, 255, 0.292)  46.130%,
  rgba(255, 255, 255, 0.290)  46.495%,
  rgba(255, 255, 255, 0.286)  46.495%,
  rgba(255, 255, 255, 0.284)  46.863%,
  rgba(255, 255, 255, 0.282)  47.233%,
  rgba(255, 255, 255, 0.278)  47.233%,
  rgba(255, 255, 255, 0.277)  47.606%,
  rgba(255, 255, 255, 0.275)  47.982%,
  rgba(255, 255, 255, 0.271)  47.982%,
  rgba(255, 255, 255, 0.269)  48.360%,
  rgba(255, 255, 255, 0.267)  48.741%,
  rgba(255, 255, 255, 0.263)  48.741%,
  rgba(255, 255, 255, 0.261)  49.125%,
  rgba(255, 255, 255, 0.259)  49.512%,
  rgba(255, 255, 255, 0.255)  49.512%,
  rgba(255, 255, 255, 0.253)  49.902%,
  rgba(255, 255, 255, 0.251)  50.295%,
  rgba(255, 255, 255, 0.247)  50.295%,
  rgba(255, 255, 255, 0.245)  50.691%,
  rgba(255, 255, 255, 0.243)  51.090%,
  rgba(255, 255, 255, 0.239)  51.090%,
  rgba(255, 255, 255, 0.237)  51.493%,
  rgba(255, 255, 255, 0.235)  51.899%,
  rgba(255, 255, 255, 0.231)  51.899%,
  rgba(255, 255, 255, 0.229)  52.308%,
  rgba(255, 255, 255, 0.228)  52.721%,
  rgba(255, 255, 255, 0.224)  52.721%,
  rgba(255, 255, 255, 0.222)  53.138%,
  rgba(255, 255, 255, 0.220)  53.558%,
  rgba(255, 255, 255, 0.216)  53.558%,
  rgba(255, 255, 255, 0.214)  53.982%,
  rgba(255, 255, 255, 0.212)  54.410%,
  rgba(255, 255, 255, 0.208)  54.410%,
  rgba(255, 255, 255, 0.206)  54.842%,
  rgba(255, 255, 255, 0.204)  55.279%,
  rgba(255, 255, 255, 0.200)  55.279%,
  rgba(255, 255, 255, 0.198)  55.719%,
  rgba(255, 255, 255, 0.196)  56.164%,
  rgba(255, 255, 255, 0.192)  56.164%,
  rgba(255, 255, 255, 0.190)  56.614%,
  rgba(255, 255, 255, 0.188)  57.068%,
  rgba(255, 255, 255, 0.184)  57.068%,
  rgba(255, 255, 255, 0.182)  57.527%,
  rgba(255, 255, 255, 0.180)  57.992%,
  rgba(255, 255, 255, 0.176)  57.992%,
  rgba(255, 255, 255, 0.174)  58.461%,
  rgba(255, 255, 255, 0.172)  58.936%,
  rgba(255, 255, 255, 0.169)  58.936%,
  rgba(255, 255, 255, 0.167)  59.416%,
  rgba(255, 255, 255, 0.165)  59.902%,
  rgba(255, 255, 255, 0.161)  59.902%,
  rgba(255, 255, 255, 0.159)  60.394%,
  rgba(255, 255, 255, 0.157)  60.892%,
  rgba(255, 255, 255, 0.153)  60.892%,
  rgba(255, 255, 255, 0.151)  61.397%,
  rgba(255, 255, 255, 0.149)  61.908%,
  rgba(255, 255, 255, 0.145)  61.908%,
  rgba(255, 255, 255, 0.143)  62.426%,
  rgba(255, 255, 255, 0.141)  62.952%,
  rgba(255, 255, 255, 0.137)  62.952%,
  rgba(255, 255, 255, 0.135)  63.485%,
  rgba(255, 255, 255, 0.133)  64.026%,
  rgba(255, 255, 255, 0.129)  64.026%,
  rgba(255, 255, 255, 0.128)  64.575%,
  rgba(255, 255, 255, 0.126)  65.133%,
  rgba(255, 255, 255, 0.122)  65.133%,
  rgba(255, 255, 255, 0.120)  65.700%,
  rgba(255, 255, 255, 0.118)  66.277%,
  rgba(255, 255, 255, 0.114)  66.277%,
  rgba(255, 255, 255, 0.112)  66.863%,
  rgba(255, 255, 255, 0.110)  67.460%,
  rgba(255, 255, 255, 0.106)  67.460%,
  rgba(255, 255, 255, 0.104)  68.069%,
  rgba(255, 255, 255, 0.102)  68.689%,
  rgba(255, 255, 255, 0.098)  68.689%,
  rgba(255, 255, 255, 0.096)  69.321%,
  rgba(255, 255, 255, 0.094)  69.967%,
  rgba(255, 255, 255, 0.090)  69.967%,
  rgba(255, 255, 255, 0.088)  70.627%,
  rgba(255, 255, 255, 0.086)  71.303%,
  rgba(255, 255, 255, 0.082)  71.303%,
  rgba(255, 255, 255, 0.080)  71.994%,
  rgba(255, 255, 255, 0.078)  72.704%,
  rgba(255, 255, 255, 0.074)  72.704%,
  rgba(255, 255, 255, 0.072)  73.432%,
  rgba(255, 255, 255, 0.071)  74.180%,
  rgba(255, 255, 255, 0.067)  74.180%,
  rgba(255, 255, 255, 0.065)  74.951%,
  rgba(255, 255, 255, 0.063)  75.746%,
  rgba(255, 255, 255, 0.059)  75.746%,
  rgba(255, 255, 255, 0.057)  76.569%,
  rgba(255, 255, 255, 0.055)  77.421%,
  rgba(255, 255, 255, 0.051)  77.421%,
  rgba(255, 255, 255, 0.049)  78.307%,
  rgba(255, 255, 255, 0.047)  79.231%,
  rgba(255, 255, 255, 0.043)  79.231%,
  rgba(255, 255, 255, 0.041)  80.197%,
  rgba(255, 255, 255, 0.039)  81.213%,
  rgba(255, 255, 255, 0.035)  81.213%,
  rgba(255, 255, 255, 0.033)  82.288%,
  rgba(255, 255, 255, 0.031)  83.432%,
  rgba(255, 255, 255, 0.028)  83.432%,
  rgba(255, 255, 255, 0.025)  84.661%,
  rgba(255, 255, 255, 0.024)  85.997%,
  rgba(255, 255, 255, 0.020)  85.997%,
  rgba(255, 255, 255, 0.018)  87.475%,
  rgba(255, 255, 255, 0.016)  89.153%,
  rgba(255, 255, 255, 0.012)  89.153%,
  rgba(255, 255, 255, 0.010)  91.144%,
  rgba(255, 255, 255, 0.008)  93.738%,
  rgba(255, 255, 255, 0.004)  93.738%,
  rgba(255, 255, 255, 0.004) 100.000%,
  rgba(255, 255, 255, 0.004) 100.000%
);