This Chat Skin was made by Heliosanctus and was inspired by some of Wisps and Spirals's transparent chat skins. She also made the picture c:
Copy the code from MediaWiki:ChatSkin Salamence.css to your CSS page to use this Chat Skin.
@import "http://heliosanctus.wikia.com/index.php?title=MediaWiki:ChatSkin_Salamence.css&action=raw&ctype=text/css";