Sorry, all of ConTeXt is still very new to me, and the documentation often confuses me.

Am 22.04.2016 um 22:28 schrieb Hans Hagen:

you can define your own font .. search in the test suite for
fallbacks*.tex etc as well as extensions-*.tex

For both searches the test suite answers "No matches found".

see s-lingual-de.mkiv

I'd do that, if I knew what that is and where I can find it.