protected virtual void DrawCenter(HandData hand, Graphics g)
{
g.FillEllipse(Brushes.Blue, hand.Location.X - 5, hand.Location.Y - 5, 10, 10);
if (hand.HasPalmPoint)
{
g.FillEllipse(Brushes.SpringGreen, hand.PalmPoint.Value.X - 5, hand.PalmPoint.Value.Y - 5, 10, 10);
var palmSize = hand.PalmDistance;
g.DrawEllipse(Pens.SpringGreen, (int)(hand.PalmPoint.Value.X - palmSize), (int)(hand.PalmPoint.Value.Y - palmSize), (int)(palmSize * 2), (int)(palmSize * 2));
}
}