The look of characters in-game

[Sneckster5]

When you said you could change how a character looks in-game, what exactly do you mean?

[Tynan]

You can select the body type and gender.

[JimmyAgnt007]

How do you go about making the art assets?  I use Paint.NET when I do work but it always looks really low quality. 

[James009]

What file type are you saving as? My experience is that .JPG files reduce the quality by quite a bit.

Then again, I've never edited Rimworld files... yet.