Where are the theme PDF manuals?

The marketing material promises PDF manuals for the themes, but I can’t find them. Reading around – it seems the manuals may be hidden inside the themes AFTER you download them. The documentation should be easy to find and read on the web before the theme is downloaded – that is usually the best way to check it out in advance.

Anyway – I’d like clear simple instructions on how to get at theme documentation from within the WPMU dashboard interface without downloading any files.

Thanks,

– Chris