Rated 4 out of 5 stars

by Timer on Nov. 30, 2014 ·

Sorry, I have tried all you suggest but all events still stay green!

Not sure what you mean by 'Or use Australis ReDesign TB without Lightning-Design, when you use Calendar Tweaks !'
How is this done?

This review is for a previous version of the add-on (31.7.5).  This user has other reviews of this add-on.

by Ansgar (Developer) on Nov. 30, 2014 ·

In Thunderbird:
Under Settings - Calendar - Generally.
Click on:
Optimize colors for ... ( it must set / check mark ).
Then you use windows color.

If this not work, then use Australis ReDesign TB without Lightning-Design ( Version 30.31, Version 27.5 ).

I use my own theme, it works, but i don't use Calendar Tweaks.

Colors for category and colors for events, i can change and setting !

- see screenshot:
green = Feiertage ( Holidays )
blue = Privat ( Private )
yellow = Termin ( Events )

Last try with version 31.8.5 ( download from the cloud )
or 31.8 ( without Lightning-Design )