<a href="https://en.wikipedia.org/wiki/WGN_America" class="extiw" title="en:WGN America">WGN America</a> logo introduced in December 2013 and implemented into full use by the end of January 2014
Unknown author<span style="display: none;">Unknown author</span>: work for hire for the Tribune Company
<ol><li><a rel="nofollow" class="external text" href="http://www.wgnamerica.com/sites/all/themes/WGNA/images/logo.png">logo.png</a> via <a rel="nofollow" class="external free" href="http://www.wgnamerica.com/">http://www.wgnamerica.com/</a> (also available at <a rel="nofollow" class="external free" href="http://logos.wikia.com/wiki/File:WGN_America_2014.svg">http://logos.wikia.com/wiki/File:WGN_America_2014.svg</a> )</li>
<li>Optimized with <a href="https://en.wikipedia.org/wiki/PNGOUT" class="extiw" title="en:PNGOUT">PNGOUT</a> version 20120220</li></ol>