"A free theme inspired by the Angry Birds."
Angry Birds are the stars of this nice free theme, with the guarantee of Microsoft.
Angry Birds is a desktop theme designed with various images from the game of Angry Birds, of different colours and varied in character. If you like the game, there's no better way to pay tribute than by downloading this program, and completely changing the look of your Windows by filling it with angry birds and naughty pigs.
Angry Birds is an official Microsoft theme created to customize Windows 7 and 8. It's also compatible with Windows RT.