Avatar: the Last Airbender, also known as Avatar: the Legend of Aang, is a very popular TV series. It exists out of three seasons (or 'books'): water, earth and fire. It is being aired on Nickelodeon.
The series follows the adventures of protagonist Aang and his friends, who must bring peace and balance to the world by ending the Fire Lord's war against the other three nations. In doing so he should master all four elements.
Avatar: the Last Airbender is followed by the Legend of Korra.
In this theme I included the main characters from the first season; Aang, his friends Sokka and Katara, and one of the main villains: prince Zuko.
UPDATE:
Toph also made her way to this theme in the new version
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!