title: Set color levels of Brush in wpf
body: <p>I'm using the Brushes in my wpf application as shown below, what I want to do is to control the colour intensity. So as shown below the brush is set to Green colour. But what I want to do is to control the intensity of the green colour, so that sometimes it can be lighter or thicker, depending on the value I pass it. so if anyone could please advise.      </p>
  
  <pre><code>private readonly Pen P = new Pen(Brushes.Green, 6);
  </code></pre>