Rated 5 out of 5 stars

Nice work addressing something that's regressed in recent versions of Thunderbird.
It would be great if the toolbar control could work to "select last" or click dropdown to select from list - in the manner that most word processors do for example.
Or even a second button for "Favorite/Pinned Color" - as most of the time I'm sticking with a single emphasis color when I feel I need it.