title: png2ico exporting ICO in lower quality than the original PNGs
body: <p>I have 6 PNG files that I want to bundle into one ICO file.  I'd like to use something like <a href="http://www.winterdrache.de/freeware/png2ico/" rel="nofollow noreferrer">png2ico</a> instead of a web app like <a href="http://convertico.org/Multi_Image_to_one_icon/" rel="nofollow noreferrer">ConvertICO.org's web app</a>.</p>
  
  <p>When the ICO is produced using png2ico, the quality of the ICO seems to have dropped.  Below are 2 images (100% view and zoomed in) comparing the png2ico output (right) to the original PNG (left).</p>
  
  <p><img src="https://i.stack.imgur.com/dQQo9.png" alt="Comparison of original PNG &amp; png2ico&#39;s output."></p>
  
  <p><img src="https://i.stack.imgur.com/jaeyc.png" alt="Comparison of original PNG &amp; png2ico&#39;s output magnified."></p>
  
  <p>Is this a limitation of png2ico?  Can I stop png2ico from lowering the quality?  Can you recommend another way of bundling 6 PNGs into 1 ICO using Terminal on OSX?</p>