title: Extension for UIColor with custom colors it is real?
body: <p>I have some custom colors for my application and now its saves like a dictionary, but I think this is no really good idea and I want to do extension for UIColor with a custom color.</p>
  
  <p>That may look like this</p>
  
  <pre><code>var newColor = UIColor.MyColor // like UIColor.white
  </code></pre>
  
  <p>Maybe I should add to extension an enumeration with my colors?</p>