Spayed/Neutered = “on”

Hi, love the plugin! My question: when adding a pet, we check the “neutered” box. On the front end when the dog is displayed, it says “on, Vacinated, No special needs”. The word “on” apparently refers to whether the dog is neutered or not. (Source says: <span class=”pet_neut”>on</span>). Is there a way to have it say “neutered” or “not neutered” instead of just “on”, since the front end user has no way of knowing what “on” is referring to? Also, better yet, can we choose between spayed and neutered, since spayed is for females and neutered for males? Thank you!!