Using the "used fonts" extension, I found a few things, including use of "Wingdings" of all things! Searching for that, I found it used in "Note for Mac users", which is present in every document and comes from the template.
It turns out that the "Command Key" symbol is typed using the 'z' character and changed to Wingdings font. My understanding is that this font is including (only) on Microsoft Windows. So, the Mac users whom this is aimed at will see a 'z' instead, or perhaps something goofy as it gets substituted with some random symbol font. Is it actually visible on people's Mac's?
The character 'β' encoded as U+2318. I see that it is not present in the Liberation fonts used by the main text, but it shows up anyway in the document. I presume this is some kind of font fall-back ability. So, at least using the standard Unicode character will show up even if the needed font is absent! And what font to use?
Linux Biolinum Kb has it, but in a "key cap" outline. That may be OK for this specific usage, though it doesn't match the other key-typing explanations. I also note it is in some of the DejaVu fonts, which appear to have been used in previous versions of the OOo documents, and Symbola, available at <http://users.teilar.gr/~g1951d/> and "free for any use".
I think we should change this in the Template and throughout. Thoughts?
