@SuzyCue72 and @Turjan apparently the tetrachromats see more tones and not all colours are affected in the same way. The amount of enhancement of their vision depends on each individual with the condition. I haven't made a point of learning all about the condition though.
And - I used to often give my sims the Great Kisser trait just to get the extra lifetime happiness. I still do it occasionally, but I've found other ways to maximise their LTH scores without using up a trait to do it. And I wouldn't bother making Ambrosia to give them the extra +75 lifetime happiness points. It's too difficult and too expensive to make. Maximise cooking skill, learn the very expensive ambrosia recipe. Then catch a death fish and grow life fruit each time you want to give them some extra lifetime happiness.
