Rated 4 out of 5 stars
One of the add-ons I use every day. Most functions still work with the current Thunderbird version when "extensions.strictcompatibility" is set to false.
I really wonder why these buttons are not part of the default options of Thunderbird.
The colour buttons still work, but they don't show the selected colours any more. I would be really happy if the developer could provide an update for the current Thunderbird version, please!!!