public void TestMonochromatic() // darker to lighter
{
var result = _harmony.GetMonochromatic(_color).ToArray();
Assert.AreEqual(Color.FromArgb(143, 11, 173), result[0]);
Assert.AreEqual(Color.FromArgb(163, 13, 197), result[1]);
Assert.AreEqual(Color.FromArgb(183, 14, 221), result[2]);
Assert.AreEqual(_color, result[3]);
Assert.AreEqual(Color.FromArgb(205, 45, 242), result[4]);
Assert.AreEqual(Color.FromArgb(210, 69, 243), result[5]);
Assert.AreEqual(Color.FromArgb(216, 93, 245), result[6]);
}