Joker SMS Theme is the best SMS theme to bring your phone a new look. It will make your SMS look cool and dark, with a very nice background. The font will also be different. There are many awesome fonts, all of them with a very nice look. 

It is very easy to use. You don't have to do anything special. Just download it and install it, and you are done. It is very easy to use. The instructions are very easy. 

If you want to download it for free, you can do that. The free version is available for Android.