Microsoft has released yet another set of awesome themes for Windows 7- Arctic and Fireworks. Arctic theme bring in beautiful landscapes and animals from Earth’s coldest regions. With this theme, icebergs, polar bears and snow owls fill your desktop’s background. The theme comes with 15 wallpapers included.

Arctic

Arctic_1

Download Arctic Theme

Fireworks is another theme to celebrate the arrival of 2011. It comes with 13 high resolution wallpapers of Fireworks.

Fireworks

Fireworks_1

Download Fireworks theme