title: Add color tint effect with colour matrix
body: <p>I am trying to add a filter to change the colour of something to a dark green, like you can add the style 'Tint' in Flash and then set alpha and rgb.</p>
  
  <p>I have tried adding a colour matrix filter and have managed to get a fluorescent green, but can't see how to make it a dark green. I don't understand colour matrixes very well so I'm not sure if it is even possible.</p>
  
  <p>I am using the pixi javascript library, but I think colour matrixes are a pretty standard thing.</p>
  
  <p>Any help would be greatly appreciated!</p>
  
  <p>This is the matrix which gets fluorescent green:</p>
  
  <pre><code>            0, 0, 0, 0,
              0, 1, 0, 1,
              0, 0, 0, 0,
              0, 0, 0, 0
  </code></pre>