Rated 5 out of 5 stars
@iamdegenatron: I agree that until then, actual age will be unsuited to evaluate tab actuality. I recommend using another of the three options presented.
But even with those, I happen to run into situations where all tabs are maximum coloured. I would really appreciate a top bar button to delete all tab colours.
E: @iamdegenatron - I added a tag to the addon, the CanNotFind-Bug should be fixed now xD