[NTG-context] Proper setting of font features for protrusion/expansion

Jan Tosovsky j.tosovsky at email.cz
Sun May 4 22:41:56 CEST 2014

On 2014-05-04 Wolfgang Schuster wrote:
> Am 04.05.2014 um 19:34 schrieb Jan Tosovsky:
> > In my code I use the following shortcut found somewhere:
> >
> > \definefontfamily[palatino][rm][Palatino Linotype][features={default,
> > quality}]
> >
> > Is there any description what that '[features={default, quality}]'
> > option really does?
> When you apply features to a font you can set a list of features and
> all of them will be applied.
> In the example below you can see both methods, the first text uses the
> new featurelist "testfeature" which uses "default" and extends it with
> "protrusion=quality". The second text applies the two predefined lists 
> "default" and "quality" (which sets "protrusion=quality"
> and "expansion=quality").
> \definefontfeature[testfeature][default][protrusion=quality]
> ... 
> \startfont[Serif*testfeature]
> ...
> \startfont[Serif*default,quality]

Aahh, thanks. 

So it is the preset name what confused me here... From my POV the 'quality'
should be replaced with the more specific label. I believe it will enhance
readability the code. I can imagine even 'microtypography' for this kind of


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