Support New OpenType Variation Font

[typometre]

As Safari will support OpenType Variation soon, it would be useful to fontsampler to be ready. It would require sliders as done by axis-praxis.org but the best way will be a step slider #42

[kontur]

I'll keep an eye on this; Is this a feature you are personally interested in using or are you suggesting for feature completeness? Just trying to balance what issues will provide most use to the plugin users, so obviously if there is a concrete need I can bump the priority.

[typometre]

I begin to look at OpenType Variation font technology. I made test to produce a trial Variation font and it is already working in the last Safari Technology preview (only under Sierra) so we can hope to have it available soon. So I would be interested in showcasing it with the plugin.

[typometre]

A test http://typomet.re/AKYA. If you need a font to test, I suggest a Voto Serif as a 3 master demo font https://github.com/twardoch/varfonts-ofl/tree/master/VotoSerifGX-OFL

[kontur]

Thanks for the links and interest. For the next update after this current one (probably online tomorrow) I'll check this out!