Hi,
I'm writing math and I'm using "modern", and I would like to use
"doublestroke".
There is an example here,
http://www.ntg.nl/pipermail/ntg-context/2008/037124.html, but I think it's
not likely to work since families aren't used anymore.
I really can't think how it should be done, and all I've found would be
through some substitution mechanism as described in "fonts-mkiv.pdf".
I could use an example of replacing a "vector" of a font, by another font.
There might be things too with "simplefonts" and "fallback" mechanism, but
I haven't seen examples with math.
Regards,
Chris