It's alluded to in this passage: There are also events for all the other object types, and sub-types, such as: change:path, add:path, destroy:path, change:text, add:text, destroy:text, change:token, add:token, destroy:token, change:card, add:card, destroy:card See the Objects reference for a complete list of all object types and sub-types. Of course, that mentions destroy:token and destroy:card, which I believe I've found don't actually get called (though destroy:graphic does, and you can always check the subtype). =D