To make the onscreen windows more transparent, move the Color Intensity slider to the left. When the Window Color and Appearance window appears, as shown in, click the color scheme you want.
When the Personalization window appears, click Window Color. Right-click anywhere on the desktop and click Personalize from the pop-up menu. You can change the color scheme, however, as well as the level of translucency used in windows frames, the taskbar, the Start menu, and other onscreen elements.To change the color and translucency in Windows 7, follow these steps. Changing the Color SchemeChanging the Color SchemeWindows 7, like Windows Vista before it, features the Aero interface, which offers a nice combination of translucent (see-through) colors.