// 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
#declare power_2_00 =
color_map {
  [0.00000 color rgbf <1.0000,1.0000,1.0000,0.0000>]
  [0.00196 color rgbf <1.0000,1.0000,1.0000,0.0020>]
  [0.00393 color rgbf <1.0000,1.0000,1.0000,0.0039>]
  [0.00393 color rgbf <1.0000,1.0000,1.0000,0.0078>]
  [0.00590 color rgbf <1.0000,1.0000,1.0000,0.0098>]
  [0.00787 color rgbf <1.0000,1.0000,1.0000,0.0118>]
  [0.00787 color rgbf <1.0000,1.0000,1.0000,0.0157>]
  [0.00985 color rgbf <1.0000,1.0000,1.0000,0.0176>]
  [0.01184 color rgbf <1.0000,1.0000,1.0000,0.0196>]
  [0.01184 color rgbf <1.0000,1.0000,1.0000,0.0235>]
  [0.01382 color rgbf <1.0000,1.0000,1.0000,0.0255>]
  [0.01581 color rgbf <1.0000,1.0000,1.0000,0.0275>]
  [0.01581 color rgbf <1.0000,1.0000,1.0000,0.0314>]
  [0.01781 color rgbf <1.0000,1.0000,1.0000,0.0333>]
  [0.01980 color rgbf <1.0000,1.0000,1.0000,0.0353>]
  [0.01980 color rgbf <1.0000,1.0000,1.0000,0.0392>]
  [0.02181 color rgbf <1.0000,1.0000,1.0000,0.0412>]
  [0.02381 color rgbf <1.0000,1.0000,1.0000,0.0431>]
  [0.02381 color rgbf <1.0000,1.0000,1.0000,0.0471>]
  [0.02582 color rgbf <1.0000,1.0000,1.0000,0.0490>]
  [0.02784 color rgbf <1.0000,1.0000,1.0000,0.0510>]
  [0.02784 color rgbf <1.0000,1.0000,1.0000,0.0549>]
  [0.02986 color rgbf <1.0000,1.0000,1.0000,0.0569>]
  [0.03188 color rgbf <1.0000,1.0000,1.0000,0.0588>]
  [0.03188 color rgbf <1.0000,1.0000,1.0000,0.0627>]
  [0.03391 color rgbf <1.0000,1.0000,1.0000,0.0647>]
  [0.03594 color rgbf <1.0000,1.0000,1.0000,0.0667>]
  [0.03594 color rgbf <1.0000,1.0000,1.0000,0.0706>]
  [0.03798 color rgbf <1.0000,1.0000,1.0000,0.0725>]
  [0.04002 color rgbf <1.0000,1.0000,1.0000,0.0745>]
  [0.04002 color rgbf <1.0000,1.0000,1.0000,0.0784>]
  [0.04206 color rgbf <1.0000,1.0000,1.0000,0.0804>]
  [0.04411 color rgbf <1.0000,1.0000,1.0000,0.0824>]
  [0.04411 color rgbf <1.0000,1.0000,1.0000,0.0863>]
  [0.04616 color rgbf <1.0000,1.0000,1.0000,0.0882>]
  [0.04822 color rgbf <1.0000,1.0000,1.0000,0.0902>]
  [0.04822 color rgbf <1.0000,1.0000,1.0000,0.0941>]
  [0.05028 color rgbf <1.0000,1.0000,1.0000,0.0961>]
  [0.05235 color rgbf <1.0000,1.0000,1.0000,0.0980>]
  [0.05235 color rgbf <1.0000,1.0000,1.0000,0.1020>]
  [0.05442 color rgbf <1.0000,1.0000,1.0000,0.1039>]
  [0.05650 color rgbf <1.0000,1.0000,1.0000,0.1059>]
  [0.05650 color rgbf <1.0000,1.0000,1.0000,0.1098>]
  [0.05858 color rgbf <1.0000,1.0000,1.0000,0.1118>]
  [0.06066 color rgbf <1.0000,1.0000,1.0000,0.1137>]
  [0.06066 color rgbf <1.0000,1.0000,1.0000,0.1176>]
  [0.06275 color rgbf <1.0000,1.0000,1.0000,0.1196>]
  [0.06485 color rgbf <1.0000,1.0000,1.0000,0.1216>]
  [0.06485 color rgbf <1.0000,1.0000,1.0000,0.1255>]
  [0.06695 color rgbf <1.0000,1.0000,1.0000,0.1275>]
  [0.06905 color rgbf <1.0000,1.0000,1.0000,0.1294>]
  [0.06905 color rgbf <1.0000,1.0000,1.0000,0.1333>]
  [0.07116 color rgbf <1.0000,1.0000,1.0000,0.1353>]
  [0.07327 color rgbf <1.0000,1.0000,1.0000,0.1373>]
  [0.07327 color rgbf <1.0000,1.0000,1.0000,0.1412>]
  [0.07539 color rgbf <1.0000,1.0000,1.0000,0.1431>]
  [0.07751 color rgbf <1.0000,1.0000,1.0000,0.1451>]
  [0.07751 color rgbf <1.0000,1.0000,1.0000,0.1490>]
  [0.07964 color rgbf <1.0000,1.0000,1.0000,0.1510>]
  [0.08178 color rgbf <1.0000,1.0000,1.0000,0.1529>]
  [0.08178 color rgbf <1.0000,1.0000,1.0000,0.1569>]
  [0.08391 color rgbf <1.0000,1.0000,1.0000,0.1588>]
  [0.08606 color rgbf <1.0000,1.0000,1.0000,0.1608>]
  [0.08606 color rgbf <1.0000,1.0000,1.0000,0.1647>]
  [0.08820 color rgbf <1.0000,1.0000,1.0000,0.1667>]
  [0.09036 color rgbf <1.0000,1.0000,1.0000,0.1686>]
  [0.09036 color rgbf <1.0000,1.0000,1.0000,0.1725>]
  [0.09252 color rgbf <1.0000,1.0000,1.0000,0.1745>]
  [0.09468 color rgbf <1.0000,1.0000,1.0000,0.1765>]
  [0.09468 color rgbf <1.0000,1.0000,1.0000,0.1804>]
  [0.09685 color rgbf <1.0000,1.0000,1.0000,0.1824>]
  [0.09902 color rgbf <1.0000,1.0000,1.0000,0.1843>]
  [0.09902 color rgbf <1.0000,1.0000,1.0000,0.1882>]
  [0.10120 color rgbf <1.0000,1.0000,1.0000,0.1902>]
  [0.10338 color rgbf <1.0000,1.0000,1.0000,0.1922>]
  [0.10338 color rgbf <1.0000,1.0000,1.0000,0.1961>]
  [0.10557 color rgbf <1.0000,1.0000,1.0000,0.1980>]
  [0.10777 color rgbf <1.0000,1.0000,1.0000,0.2000>]
  [0.10777 color rgbf <1.0000,1.0000,1.0000,0.2039>]
  [0.10997 color rgbf <1.0000,1.0000,1.0000,0.2059>]
  [0.11217 color rgbf <1.0000,1.0000,1.0000,0.2078>]
  [0.11217 color rgbf <1.0000,1.0000,1.0000,0.2118>]
  [0.11439 color rgbf <1.0000,1.0000,1.0000,0.2137>]
  [0.11660 color rgbf <1.0000,1.0000,1.0000,0.2157>]
  [0.11660 color rgbf <1.0000,1.0000,1.0000,0.2196>]
  [0.11882 color rgbf <1.0000,1.0000,1.0000,0.2216>]
  [0.12105 color rgbf <1.0000,1.0000,1.0000,0.2235>]
  [0.12105 color rgbf <1.0000,1.0000,1.0000,0.2275>]
  [0.12329 color rgbf <1.0000,1.0000,1.0000,0.2294>]
  [0.12552 color rgbf <1.0000,1.0000,1.0000,0.2314>]
  [0.12552 color rgbf <1.0000,1.0000,1.0000,0.2353>]
  [0.12777 color rgbf <1.0000,1.0000,1.0000,0.2373>]
  [0.13002 color rgbf <1.0000,1.0000,1.0000,0.2392>]
  [0.13002 color rgbf <1.0000,1.0000,1.0000,0.2431>]
  [0.13228 color rgbf <1.0000,1.0000,1.0000,0.2451>]
  [0.13454 color rgbf <1.0000,1.0000,1.0000,0.2471>]
  [0.13454 color rgbf <1.0000,1.0000,1.0000,0.2510>]
  [0.13681 color rgbf <1.0000,1.0000,1.0000,0.2529>]
  [0.13908 color rgbf <1.0000,1.0000,1.0000,0.2549>]
  [0.13908 color rgbf <1.0000,1.0000,1.0000,0.2588>]
  [0.14136 color rgbf <1.0000,1.0000,1.0000,0.2608>]
  [0.14365 color rgbf <1.0000,1.0000,1.0000,0.2627>]
  [0.14365 color rgbf <1.0000,1.0000,1.0000,0.2667>]
  [0.14594 color rgbf <1.0000,1.0000,1.0000,0.2686>]
  [0.14824 color rgbf <1.0000,1.0000,1.0000,0.2706>]
  [0.14824 color rgbf <1.0000,1.0000,1.0000,0.2745>]
  [0.15055 color rgbf <1.0000,1.0000,1.0000,0.2765>]
  [0.15286 color rgbf <1.0000,1.0000,1.0000,0.2784>]
  [0.15286 color rgbf <1.0000,1.0000,1.0000,0.2824>]
  [0.15518 color rgbf <1.0000,1.0000,1.0000,0.2843>]
  [0.15750 color rgbf <1.0000,1.0000,1.0000,0.2863>]
  [0.15750 color rgbf <1.0000,1.0000,1.0000,0.2902>]
  [0.15983 color rgbf <1.0000,1.0000,1.0000,0.2922>]
  [0.16217 color rgbf <1.0000,1.0000,1.0000,0.2941>]
  [0.16217 color rgbf <1.0000,1.0000,1.0000,0.2980>]
  [0.16451 color rgbf <1.0000,1.0000,1.0000,0.3000>]
  [0.16686 color rgbf <1.0000,1.0000,1.0000,0.3020>]
  [0.16686 color rgbf <1.0000,1.0000,1.0000,0.3059>]
  [0.16922 color rgbf <1.0000,1.0000,1.0000,0.3078>]
  [0.17158 color rgbf <1.0000,1.0000,1.0000,0.3098>]
  [0.17158 color rgbf <1.0000,1.0000,1.0000,0.3137>]
  [0.17395 color rgbf <1.0000,1.0000,1.0000,0.3157>]
  [0.17633 color rgbf <1.0000,1.0000,1.0000,0.3176>]
  [0.17633 color rgbf <1.0000,1.0000,1.0000,0.3216>]
  [0.17872 color rgbf <1.0000,1.0000,1.0000,0.3235>]
  [0.18110 color rgbf <1.0000,1.0000,1.0000,0.3255>]
  [0.18110 color rgbf <1.0000,1.0000,1.0000,0.3294>]
  [0.18350 color rgbf <1.0000,1.0000,1.0000,0.3314>]
  [0.18591 color rgbf <1.0000,1.0000,1.0000,0.3333>]
  [0.18591 color rgbf <1.0000,1.0000,1.0000,0.3373>]
  [0.18832 color rgbf <1.0000,1.0000,1.0000,0.3392>]
  [0.19074 color rgbf <1.0000,1.0000,1.0000,0.3412>]
  [0.19074 color rgbf <1.0000,1.0000,1.0000,0.3451>]
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  [0.19804 color rgbf <1.0000,1.0000,1.0000,0.3549>]
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  [0.20541 color rgbf <1.0000,1.0000,1.0000,0.3647>]
  [0.20541 color rgbf <1.0000,1.0000,1.0000,0.3686>]
  [0.20788 color rgbf <1.0000,1.0000,1.0000,0.3706>]
  [0.21036 color rgbf <1.0000,1.0000,1.0000,0.3725>]
  [0.21036 color rgbf <1.0000,1.0000,1.0000,0.3765>]
  [0.21285 color rgbf <1.0000,1.0000,1.0000,0.3784>]
  [0.21534 color rgbf <1.0000,1.0000,1.0000,0.3804>]
  [0.21534 color rgbf <1.0000,1.0000,1.0000,0.3843>]
  [0.21785 color rgbf <1.0000,1.0000,1.0000,0.3863>]
  [0.22036 color rgbf <1.0000,1.0000,1.0000,0.3882>]
  [0.22036 color rgbf <1.0000,1.0000,1.0000,0.3922>]
  [0.22288 color rgbf <1.0000,1.0000,1.0000,0.3941>]
  [0.22540 color rgbf <1.0000,1.0000,1.0000,0.3961>]
  [0.22540 color rgbf <1.0000,1.0000,1.0000,0.4000>]
  [0.22794 color rgbf <1.0000,1.0000,1.0000,0.4020>]
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  [0.23048 color rgbf <1.0000,1.0000,1.0000,0.4078>]
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