{
  "case": "gray-hue-zero",
  "method": "Local source-file experiment; not a browser or screen-device test",
  "python": "3.12.14",
  "pillow": "12.3.0",
  "webp": "1.6.0",
  "rows": [
    {
      "rgb": [
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      ],
      "hex": "#000000",
      "hue_degrees": 0.0,
      "saturation_percent": 0.0,
      "lightness_percent": 0.0
    },
    {
      "rgb": [
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        64,
        64
      ],
      "hex": "#404040",
      "hue_degrees": 0.0,
      "saturation_percent": 0.0,
      "lightness_percent": 25.098039215686274
    },
    {
      "rgb": [
        128,
        128,
        128
      ],
      "hex": "#808080",
      "hue_degrees": 0.0,
      "saturation_percent": 0.0,
      "lightness_percent": 50.19607843137255
    },
    {
      "rgb": [
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        192,
        192
      ],
      "hex": "#C0C0C0",
      "hue_degrees": 0.0,
      "saturation_percent": 0.0,
      "lightness_percent": 75.29411764705883
    },
    {
      "rgb": [
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        255,
        255
      ],
      "hex": "#FFFFFF",
      "hue_degrees": 0.0,
      "saturation_percent": 0.0,
      "lightness_percent": 100.0
    },
    {
      "rgb": [
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        0,
        0
      ],
      "hex": "#FF0000",
      "hue_degrees": 0.0,
      "saturation_percent": 100.0,
      "lightness_percent": 50.0
    }
  ],
  "files": [
    {
      "file": "gray-and-red-control.png",
      "bytes": 416,
      "sha256": "8a6c1dc3d7aa3b838b37cdf8352f84f3ab3b2c268dbda765fcc07adbb9a01a94",
      "format": "PNG",
      "mode": "RGB",
      "width": 240,
      "height": 120,
      "bands": [
        "R",
        "G",
        "B"
      ],
      "rgba_sha256": "1b236696c4046d12a3d5938e5b379cad2590454d542b38df364e5c3b66656006",
      "unique_rgba": 6,
      "samples": []
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  ]
}