Hello,
I run KDE-Korganizer Version 4.14.2 on Linux-Mint 17.2. Having set the display colors for my various categories, I find that after restarting korganizer all my definitions are gone. What am I missing, or might this be a bug?
Regards
H. Stoellinger
Salzburg

Try this, it worked for me:

https://bugs.kde.org/show_bug.cgi?id=333754

Thanks! I entered my categories into ~/.kde/share/config/korganizerrc under [Custom Categories] as suggested and then also the color definitions under [General] Categories Colors2.
That did it!
Regards
H. Stoellinger