title: How do I fill in my half circles?
body: <p>I am trying to fill in my two half circles. I want one side black and the other side white. What do I use?</p>
  
  <p>Here is a snippet of my code:</p>
  
  <pre><code>    protected override void OnPaint(PaintEventArgs e)
      {
          base.OnPaint(e);
          Rectangle rect = new Rectangle(100, 100, 320, 320);
          e.Graphics.DrawArc(new Pen(new SolidBrush(Color.Black), 10), rect, 90, 180);
          e.Graphics.DrawArc(new Pen(new SolidBrush(Color.White), 10), rect, 270, 180);
      }
  </code></pre>