[OpenFontLibrary] Adobe's Source Sans Pro

[vern adams]

It's a bad OS/2 usWeightClass value (nothing to do with CSS). So, the '250' is getting rounded up to '300' and therefore clashing with the Light version which already has WeightClass of 300.
I think it's simple human error; the usWeightClass in the 'font.ttf' that Adobe have included with the source of Source Sans Extra Light is '200'.
Also, some of the fonts have fsType of 0x0004 (Documents containing Preview & Print fonts must be opened "read-only;" no edits can be applied to the document), but i assume Adobe means all the Source Sans fonts should be set to 0x0000.
-v


On 3 Aug 2012, at 09:51, Denis Jacquerye <moyogo at gmail.com> wrote:

> OpenType allows weight values from 1 to 999.
> CSS is the one rounding those to multiples of 100 from 100 to 900.
> Fontconfig maps them to some range from 0 to 210 (I'm not sure there).
> Fontconfig also has multiple aliases for its weight value 40:
> extralight or ultralight, and its weight value 210: black or heavy. So
> applications just using those values to name variants might not match
> the OT names.

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