Hello Dave!
>>> I consider a font broken if it has a blue zone table but no hints
>>> – shall we really take care of that? We don't do any harm; it's
>>> just that the font stays unhinted.
>>
>> Hm, well, yeah, it's okay I guess. Might be solved by teaching the
>> Adobe hinter to cope with blue zones alone in the distant future.
>
> I repectfully disagree with Werner's statement about these broken
> fonts.
Fair point :-) `Broken' is too harsh a word – what I actually meant
was that such a font can't be (currently) hinted by the new CFF engine
in FreeType.
> Blue zones are simply a declaration of font properties that the
> designer specifies. It is up to the hint interpreter to decide how
> to use that data. For example, there is a heuristic in the Adobe
> CFF interpreter that synthesizes charstring hints from blue zone
> data.
Very interesting! This is exactly what Nikolaus proposes, too. Can
you provide some details?
Werner
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