Hi @twil69, and welcome!
… a wild mix of different light sources…
Generally, it is up to the developer to decide, but if you
want to depict a specific night scene, why change the way
your eyes see it? If the scene consists of a wild mix
of different light sources, why try to rectify it?
Quote myself: "Natural" White balance...?
Have fun!
Claes in Lund, Sweden