public void AddAlpha_AdjustsColorAlpha()
{
// arrange
Color color = new Color(0.1f, 0.2f, 0.3f, 0.5f);
// act
color = Palette.AddAlpha(color, 0.1f);
Color bound = Palette.AddAlpha(color, 9);
// assert
Assert.AreEqual(0.6f, color.a, TestHelper.LabelAs("color"));
Assert.AreEqual(1, bound.a, TestHelper.LabelAs("bound"));
}