Tweaker is a special application for those who want to add something extra to their instant messenger and configure it to look exactly as they want to. There are many applications like this in the market; however none of them works better than this. It's completely free and it ready for you to try it. Every single emoticon you are able to find here is completely safe and free from virus. If you don't like the way it customizes your messenger it contains an option that allows you to go back and restore it the way it was before you installed this software.