/// <summary>
/// Blends two colors.
/// </summary>
/// <param name="bg">The background-color.</param>
/// <param name="fg">The foreground-color</param>
/// <returns>The resulting color.</returns>
public static CorsairColor Blend(this CorsairColor bg, CorsairColor fg)
{
if (fg.A == 255)
return fg;
if (fg.A == 0)
return bg;
float resultA = (1f - (1f - fg.GetFloatA()) * (1f - bg.GetFloatA()));
float resultR = (fg.GetFloatR() * fg.GetFloatA() / resultA + bg.GetFloatR() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
float resultG = (fg.GetFloatG() * fg.GetFloatA() / resultA + bg.GetFloatG() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
float resultB = (fg.GetFloatB() * fg.GetFloatA() / resultA + bg.GetFloatB() * bg.GetFloatA() * (1f - fg.GetFloatA()) / resultA);
return CreateColorFromFloat(resultA, resultR, resultG, resultB);
}
