git ssb

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var common = typeof window !== 'undefined' ? window : exports
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common.colors20 = [
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  [255, 106, 152], [255, 98, 188], [250, 98, 219], [231, 107, 243],
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  [199, 124, 255], [149, 144, 255], [53, 162, 255], [0, 176, 246],
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  [0, 186, 224], [0, 191, 196], [0, 193, 163], [0, 191, 125],
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  [0, 187, 78], [57, 182, 0], [124, 174, 0], [163, 165, 0],
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  [192, 155, 0], [216, 144, 0], [234, 131, 49], [248, 118, 109],
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  [255, 106, 152]
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]
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common.interpolate = function (a, b, n) {
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  if (!a) a = [0, 0, 0, 0]
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  if (!b) b = [0, 0, 0, 0]
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  var m = 1 - n
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  return [
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    a[0] * m + b[0] * n,
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    a[1] * m + b[1] * n,
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    a[2] * m + b[2] * n,
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    a[3] * m + b[3] * n,
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  ]
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}
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