Gerben Wierda schrieb am 01.05.2020 um 13:15:
The following code:
\enabletrackers[context.trace]
%\usemodule[article-basic]
\starttypescript [sans] [optima] \setups[font:fallback:sans] \definefontsynonym [Sans] [file:Optima.ttc(Optima Regular)] [features=default] \definefontsynonym [SansBold] [file:Optima.ttc(Optima Bold)] [features=default] \definefontsynonym [SansItalic] [file:Optima.ttc(Optima Italic)] [features=default] \definefontsynonym [SansBoldItalic] [file:Optima.ttc(Optima Bold Italic)] [features=default] \stoptypescript
\definetypeface [optima] [ss] [sans] [optima] [default]
Set a math font to avoid problems.
\setupbodyfont [optima]
\starttext
\startMPpage[instance=doublefun] picture pic; pic := textext("\definebodyfont[14.9pt][rm][default=Regular at 14.9pt]\switchtobodyfont[14.9pt]\setupinterlinespace[16.9pt]\framed[align=center,frame=off,offset=none,width=335.350bp]{\colored[r=0.000, g=0.000, b=0.000]{\rm (Artifact)\\}}");
You use \rm here which is used to switch to the serif typeface. When your goal is to enforce the upright alternative you use the wrong command because you need \tf for this. Wolfgang