One of the most exciting parts of engineering Windows 7 (download) has been the wide variety of work that gets done over the course of a full product cycle. This post provide a behind the scenes look at the new personalization work in Windows 7. As some folks have noticed, we are unveiling some new personalization content (wallpapers, glass colors and sounds schemes) in the RC build which allows people greater flexibility to personalize their experience. One thing we know is that Windows users love to express themselves by changing the desktop background and like many past releases, Windows 7 includes content in the box that allows you to begin customizing your experience immediately, said Denise Trabona and Samuel Moreau.