Vista/7 Navigation Button Colorizer is a free portable tool that allows you to change your navigation buttons color in Windows 7 & Vista with one click.
How to use:
Run the tool as administrator.
Select the color according to your choice.
Click on Apply Colour. Now the explorer will restart and you will be able to see the new navigation buttons.
It only works with Windows 7 32-bit & Windows Vista 32-bit.
(App removed by developer, use Windows 7 Navigation Buttons Customizer instead which works on both 64-bit & 32-bit)