Quoting Gandalftheredskin, reply 7
Would an option for the player to set these traits be possible?
Once you create a custom sovereign, you can change these in the sovereign's .xml file. The traits refer to AITraitTypes.xml. You can looks at the definition of the traits, and set the ones you want in the sovereign's .xml file.
Thanks Davroana. I had assumed that would be possible, but prefer not to mod any files during beta. Barring another option, I will likely do so after release. Still, if they are resetting when reloading, not sure if that will be worth the effort.
Just loaded up my current game, after having recorded all of the AI traits before my last save. They are all different again, this schizo behavior can't be right.