Am 01.05.2013 um 11:48 schrieb "Meer, H. van der" :

I used to pass (color) parameters to \startuseMPgraphic with:

\startuseMPgraphic{square}{acolor} draw unitsquare withcolor \MPvar{acolor}; % or \MPcolor{acolor}

In both cases I get the following error:

metapost > initializing instance 'metafun' using format 'metafun' metapost > loading 'metafun' as '/Users/hansm/TeX/context-09/tex/texmf-context/metapost/context/base/metafun.mpiv' using method 'default' metapost > initializing number mode 'scaled' check > missing or ungrouped '=' after 'green' in line '7 (442>square:)'

Has something changed in this mechanism of parameter use, or am I doing something wrong?

I don’t if you’re doing something wrong because you send only code snippets which makes it hard to tell where the problem lies. \starttext \startuseMPgraphic{square}{acolor} draw unitsquare scaled 10 withcolor \MPvar{acolor} ; \stopuseMPgraphic \useMPgraphic{square}{acolor=red} \useMPgraphic{square}{acolor=blue} \stoptext Wolfgang