With Aero8Tuner you will able:
to set any color of windows.
to disable windows coloring. If you will enable this undocumented feature, the color of windows borders in Windows 8 will be always white. The taskbar will use Aero color. So, this is way to have separate color for windows and taskbar.
to change color balance (affects the intensity).
to force High Contrast mode for regular themes. The blurless buggy Aero transparency will be appeared in this case.
This is a free and portable application and does not require to be installed. It works only on Windows 8 RTM and does not require any additional software.