private static async void OnLineNumbersVisiblePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
// Unpack the parameters and lock the UI
Hilite_meHighlightStylePreviewControl @this = d.To <Hilite_meHighlightStylePreviewControl>();
await @this.AnimationSemaphore.WaitAsync();
// Update the preview
if (@this.ReadLocalValue(HighlightStyleProperty) != DependencyProperty.UnsetValue)
{
bool light = LightStyles.Contains(@this.HighlightStyle);
@this.FadeCanvas.Background = new SolidColorBrush(light ? Colors.White : Colors.Black);
@this.WebControl.DefaultBackgroundColor = light ? Colors.White : Colors.Black;
String preview = await @this.LoadHTMLPreviewAsync();
@this.WebControl.NavigateToString(preview);
}
@this.AnimationSemaphore.Release();
}