Because I wanted to give my own homozygous/heterozygous values to the characters.

Thanks, that worked!  To test it out, I changed both 'Skintone' values to the alien skintone on Jenny Smith, and when I loaded up the game she had alien skin.  But these were the values missing when I first opened her unedited file in SimPE, and correspond to the values that baratron describes in his original post as being 'Skintone passed on.'  So 'Skintone'/'Skintone passed on' is basically just what the actual skintone of that Sim is?  And both values should be the same, on both the 'Dominant' and 'Recessive' lines as shown in SimPE (although skintone isn't dominant but a blend of the two parents')?  What does 'Skintone Range' do then?  Does it make a difference what the values of these lines are, on either the Dominant or Recessive lines?

While I was in there, I changed her the Dominant eye color value to that of a custom eye I have in my game, but her eyes remained as the default ones.  Is there a way to change an in-game Sim's eye color/choose a custom eye for them?  But if she were to have children, they may get that custom eye?

I recently restarted my hoods and am fixing the premade characters' DNA using SimPE.  I'm having some trouble understanding the Sim DNA options, though, because the format it's shown in is different from what is in the original post in this thread.  This is what it looks like now:

Dominant gene:
Eye:
FacialFeature:
Hair:
Skintone:
SkintoneRange:

Recessive gene:
Eye:
FacialFeature:
Hair:
Skintone:
SkintoneRange:

I'm not sure what the difference between Skintone and SkintoneRange is.  Which one is dominant/recessive skintone and which one is skintone passed on?  According to the original post, P.T.#9's 'skintone passed on' DNA was missing, and in this it would correspond with 'Skintone.'  So 'SkintoneRange' is the actual expressed skintone, and the values for both dominant & recessive SkintoneRange would need to be the same?  If I wanted to change an in-game Sim's skin color, what would I do?

Yay, what you said worked, Flamingo!  I can't believe I overlooked such a simple thing...

Before now I only used SimPE for editing character memories, info, etc. so I never had to do this.  But now I just used it to geneticize custom skintones and it worked, yay!

Thanks for your help!

Ok, so I'm having some really basic trouble with SimPE, and I figured MATY was the place to ask.  I'm trying to follow some basic tutorials, but I'm having trouble opening files from the Resource Tree.  Here are some screenshots:



No matter what I double click on, I'm not getting anything else to show up.  I must be missing something really basic... 

Feel free to call me a total dumbass, as long as you tell me what I'm doing wrong.