I found a nice little Windows Vista utility to change the appearance of the Aero Glass theme even further by allowing color transformations. The normal Windows Vista style has a static color while the Vista Color Transform application may change colors over time.
The software offers a pre-defined sets of colors that have names such as Patriotic, My Eyes!! and Winter displaying small preview images of the colors that are cycled through. If you take Winter for example you see white and icy colors when you click on edit.
It is furthermore possible to add colors to the cycle and even create your own. While this is nice for presentation it does not really add something to your daily routine. There is however an interesting option for notebook users.

You may either change the color to a darker one when you use the notebook battery only which would result in lesser power consumption or change the color according to the battery life. This would cycle the color from white to a darker color as well depending on the power level of the battery.
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Sorry to disappoint laptop owners
your screen will use *exactly* the same amount of power whether it shows completely white or completely black.
There is a lamp behind your screen that burns continuously, regardless of your display colors.
The only way to save power is to turn that lamp down. Some laptops can do that.
I have been looking for a way to change the taskbar color and this program does something even better , It alternates.. I wonder why its not so popular when so many people are looking for a way to do it.
how do i download it?
I know there is a write up about this but no mention to what app it is or where to download, Really helpfull eh?