Rated 5 out of 5 stars

Just about two years since the last review (not mine), and this works great with Thunderbird 31.6.0. I'm now able to choose whatever colors I like for individual Lightning calendars (haven't tried anything else in Lightning yet).

Note: it's also possible to change the Inbox subject line tag colors and the color does appear in the Tools > Options > Display > Tags box but, unfortunately, Thunderbird reverts to black in the Inbox. I don't believe this is the fault of the Rainbowpicker.

At any rate, thanks so much for this!