Rated 5 out of 5 stars
I have been a fan of and regularly used BorderColors and BorderColors-GT; as such, I was thrilled to see that BorderColors D came just as Thunderbird 60 was released and rendered previous BorderColors unusable.
This is all a long winded way of saying how happy I am with BorderColors D - this is a must have if you a) use Thunderbird and b) have more than one email account in Thunderbird.
Thanks dreadnaut! From a user to a developer - I am super thrilled with your work and appreciate what you have done to pick up the development on this must have add on.