Ideally, this should be done while looking at the code at the same time, in order to add any undocumented params to the manual. If you can't find what the undocumented params do, we will add the missing doc.
Additionally, if you're willing to do this, you not only get gratitude from the community but you also get to request any missing param or even missing skin tag that you need. We'll implement them for you! :)