Change the Window Color in Windows 7
This will show you how to change the color and appearance of windows, the Start Menu, and the taskbar in Windows 7.
Right click on a empty space on the desktop and click on Personalize.
Click on the Window Color link at the bottom of the window. The name under Window Color, is the current color selected.
Select a Color Click on an available color you want.
Enable or Disable Transparency Check or uncheck Enable transparency to enable or disable transparency.
Adjust Color Intensity Slide the Color intensity slider to the left to lighten the color or to the right to darken the color If you slide the slider to far to the right, the Start menu, windows, and taskbar, may no longer be transparent (if enabled) since the color will be to dark. You would just need to slide it some to the left to lighten the color again.
To Adjust the Color Mixer Settings -
If you do not want to adjust the color mixer settings, then skip this step to keep the default color selected in step 3 and go to step 7 instead.
Click on the Show color mixer button. This is if you would like to adjust the color’s hue, saturation, and brightness to create a custom color.
Slide the sliders to adjust the color. If you do not wish to continue to step 7, then click on the Save Changes button to apply the changes and close the window below.
Click on OK when done.