User blog comment:FTSOAMSibarra96/Emoticons Help/@comment-2022446-20120108150228/@comment-2059806-20120111033519

To edit an emoticon, paste the image in an image editor, change the image, save it, and upload the file onto the wiki using Special:Upload. Get the URL of the image and add it to the MediaWiki page using *[Image URL] To trigger it, just put under the image URL. Note that anything with a > or < will not trigger them. You may need to refresh the Special:Chat page to make them work.
 * [text you want to trigger the emoticon]