Whilst i'm currently implement the method for having different breast size and other body parts, i wanted to ask what you as a player would prefer, and as a potential modder.
In previous version the different breast sizes was just pre-generate in inkscape and added to db so the game will now that files exists. For modders it's a different that they should be also pre-generate items for those breasts size, but i wrote a little extension which just interpolate between two similar groups of object, so basically it's only needed to create themselves a border frames (Max, Min, and normal state) and the others are easily generated with minimal work from user. The pros is that if it generate not quite right we can manually adjust generated shapes.
As for new one version it works a little different, the user supply only borders frame and game will interpolate shapes between them, the range of slider is between -100(min) to 100(max), but truthfully it's only programming range, it's possible to made it's different or even interpolate farther then border shapes so we could gain larger/smaller breast although in this case we can't be sure of result (especially in a case of smaller ones). For a modder he only need to create at least 3 frames (MAX, MIN, NEUTRAL) with possibility of more, and in future if item should support this morph, modder should also create 3 frames per morph of used body part.
I Hope that you understand me since as you can see english isn't my main language.
And here is the version with newer one body customization.:https://mega.nz/#!uts30I7D[/size]!MN1_7UmrUaYw8wdq7qLJBs97XcczpIbA3dqz5QA0pQw