One of the innovations that is going to be introduced in the future Windows 8 from what we have seen in the preview is that Aero will automatically adjust its color depending on the image that is being used as desktop wallpaper, and that is exactly the same function that Aero Adjuster will add to Windows 7.
Automatic adjustments and more
What Aero Adjuster, that stays open in the system tray, allows us to do is not only the possibility to adjust the color of Aero according to the image that is being used as wallpaper, but also to adjust its brightness depending on the color changes or even to invert the colors.
Another possibility offered by Aero Adjuster is to choose what part of the wallpaper image you want the color of Aero to be based on, in such a way that you will be able to choose between using the full image, the center or one of the corners, for example.
Therefore, if you want to provide Windows 7 with an additional feature to make it more distinguished, simply download Aero Adjuster.