! Undefined control sequence.
system > tex > error on line 808 in file /Users/hans/TeX/context-new/tex/texmf-context/tex/context/base/context.mkiv: Undefined control sequence ...
<argument> \??bj
\setsomevalue #1#2->\expandafter \def \csname #1
#2\endcsname
\p!doassign ...fter \setsomevalue \fi \fi {#1}{#2}
{#3}
\xprocesscommaitem ...@relax@ #1==\empty \@relax@
\doubleexpandafter \xproce...
<argument> \c!n =3, \c!width
=1em, \c!height =1ex, \c!depth =\!!zeropoint , ...
\xdogetparameters #1]->\xprocesscommaitem #1
,],\@relax@
l.808 \c!color=]
Is it possible the error is in file typo-mar.mkiv? There I find a macro call
\usemargindatastyleandcolor\c!style\c!color
but searching the sourcesfor its definition does not reveal it.
Could it be forgotten?