[NTG-context] overprinting black

[Henning Hraban Ramm]

Am 09.11.22 um 17:22 schrieb Duncan Hothersall:
> Have you tried overprint=yes? I have that in old files which used to 
> work under mkii. I must admit I haven't had the need to use overprinting 
> since then, but I do recall that come colour handling wasn't ported 
> across to mkiv or later.

Thank you for the hint, but it doesn’t work, neither in \setupcolors nor 
in \definecolor.

Hraban