I want to change the character skin color to the darkest one. I open the selected sim DNA :

This is how the DNA looks before : (click pics to open a big picture)

This is how the character looks before :

replace the skintone value as below

This is how the DNA will look after the modification:

 

And this is how the character appears in the game :

The character and its portrait are modified immediately in the game, but not in SimPE.

To get the new portrait in SimPE the character must look itself in a mirror.

SEE HERE FOR CUSTOM SKIN