public override void OnReleased(UIElement uiElement, PointerRoutedEventArgs args)
 {
     InkBuilder.AddPointsFromEvent(Phase.End, uiElement, args);
     Polygons = InkBuilder.GetPolygons();
     DrawingFinished?.Invoke(this, BlendCurrentStroke);
 }
 public override void OnMoved(UIElement uiElement, PointerRoutedEventArgs args)
 {
     InkBuilder.AddPointsFromEvent(Phase.Update, uiElement, args);
     Polygons = InkBuilder.GetPolygons();
     PointsAdded?.Invoke(this, null);
 }