Apply the chameleon effect to the whole desktop

It would be very nice if the same logic used to set the color of the Unity Dash, panel and notifications based on the current wallpaper is used to set the windows title bars, menu bar, etc.

As far as I read in forums, it's called the chameleon effect, but I'm not sure if it's the official name.

There should also be a switch in the appareance settings to switch the chameleon effect on/off, or several switches to apply it to the dash, windows, menu bar, notifications, etc.