A different color for each window background

[AssangeLibre]

I use four windows, with many tabs in each, for different purposes.
It should be helpful if each background of the windows were of a different color, to identify in what window is the current tab (specially when I use the "search tabs" tool).
Using many tabs is not a mistake, is necessary to who work on web.

[Jon]

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[Jon]

@AssangeLibre Thanks, and agreed! Does the new profile management feature address this at all for you? You can apply unique themes/colors to each profile. Or would you prefer the option for different color windows all in a single profile?