I've used Moviepy fairly extensively in a recent project and yes, the docs are incomplete. I've had to resort to actually reading the source code to figure out

I've used Moviepy fairly extensively in a recent project and yes, the docs are incomplete. I've had to resort to actually reading the source code to figure out why, for example, my argument was being ignored. I still have some unresolved (though seemingly obscure) issues with transparency, and my question to the moviepy subreddit went unanswered.