In this way, you can increase the range of skin values your sims can have - you can have extra-pale, extra-dark, and more intermediate shades as well, and all the genetics will work happily together. Unlike normal custom skintones which do not have special genetic values, Geneticized Skintones have been modified to add values similar to how the default skintones work - using the 'blend' system. If two sims with custom skin breed, then there is a 50/50 chance of the child getting one or the other custom skin of the parent. Instead, custom skin is dominant: if one sim has custom skin and the other has any shade of Maxis skin, the custom skin will always be dominant, and their children will always have the custom skintone. This same system works for default replacement skins, which just change the appearance of the skins but not the genetic data.Ĭustom skintones, by default, do not have the same range of genetic values. These values work on a 'blend' system, so that a sim that has S1 skin can breed with a sim with S4 skin and have a child that falls anywhere in the range (including tan or medium, as well as the extremes, light and dark). The skintones in the game, S1 (light) through S4 (dark) have genetic values assigned to them.
The term 'genetic skins' or 'geneticized skintones' is occasionally heard in reference to custom skins for Sims 2, but what the heck does it mean?
