That was my experience too. There is/was no formal standard for creating themes, just an empty dir (which they consider a feature). Even if they had one or two "official themes" that would have helped tremendously.

Instead we spent a week researching how popular 3rd party themes did things, and made a hybrid. Then we moved away completely. I really wanted it to work for us and we were so close. Hugo is so fast and is brilliant on a couple of things.... but barely missed.

I can't remember exactly but with what we were doing we were going to be heavily dependant on their Scratchpad, which felt like a hack. It's all just hacks, and they like it. Lack of solid conventions, and they LOVE it.