I love it Rated 5 out of 5 stars

I'm using this in Thunderbird and it's greatly appreciated.

I've been trying to find an easy way to customize my (Lightning) calendar colors because the color picker provided has a very limited amount of colors and most of them I don't care for, but now I can use any color that I desire.

Sincere thanks for your time, work, and effort put into developing this add-on.