BaconographyW8.Common.SettingsFlyout.OnHeaderBrushColorChanged C# (CSharp) 메소드

        private static void OnHeaderBrushColorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            // determine the contrast and set black or white
            if (e.OldValue != e.NewValue)
            {
                SolidColorBrush newBrush = e.NewValue as SolidColorBrush;
                if (newBrush != null)
                {
                    var yiq = ((newBrush.Color.R*299) + (newBrush.Color.G*587) + (newBrush.Color.B*114)) / 1000;

                    Debug.WriteLine(yiq >= 128 ? "black" : "white");
                }
            }
        }