Are you using the Lightning Calendar in Thunderbird?
Do you wan to see the calendar color in the event reminder?
Use this addon to show those brilliant colors!!
Development discontinued. More info here
Documentation & support
Bugs
To send a bug report use github.
Future improvements
Check the issue tracker for planned features.
How does it work?
Just install it, and everything is done!
Thanks to BabelZilla for the translation support, and to Oxygen Icons for the icon.