Hi :D
I may add options in the future, especially if people want them. Nothing is set in stone after all.
I do try to be honest about this: some of the heritage features are much more cosmetic than others. The more there are, and there already are quite many, the more true this becomes. I am not opposed to adding stuff, but the changes of me forgetting the option increases :D
I have added the teeth to my notes, though there is tons of stuff there from the blog and comments.