addons:
skin cancer: optional addon that will cause sims to get a stringer risk for developing skin cancer the more they get sunburned.

EAskintones_Overide : This will give sim's tans and burns a little more variation using EA's sunburn masks, especially lighter skinned sims.

more_traits : Some parts of automatic sunburns v10 require extra personality traits beyond the default 3. If you already use another mod which allows sims to have more personality traits, this addon is not needed.