title: PIL Image mode "P" -> "RGBA"
body: <p>This is my issue:</p>
  
  <pre><code>import Image
  im = Image.open("1.png")
  im.show()
  print im.mode
  im.convert("RGBA").save("2.png")
  </code></pre>
  
  <p>Well, with my image you can see the difference.<br>
  My question is: how do I convert it properly?</p>
  
  <p>Image: <img src="https://i.stack.imgur.com/GCDQi.png" alt="original"></p>
  
  <p>Result: <img src="https://i.stack.imgur.com/2mcE1.png" alt="result"></p>
  
  <p>NOTE: The original image has a semi-transparent glow, the result has a solid green "glow"</p>