If you modify the Windows interface in question, there are several options: a more "invasive" that involve patching the system, and simpler ones that only need to modify some parameters. The latter have the ability to use applications that help us with our task, as is the case AeroTuner.
This is a freeware application that offers the possibility of set some few features Aero, Which are not in plain view between the options Windows 7. All very simple, with sliders and check boxes.
Among the parameters that we can modify AeroTuner transparencies (up to 90%, something that the Windows could not), the Aero Stripes oel color balance, brightness and saturation.