Henning Hraban Ramm mailto:texml@fiee.net 23. Februar 2018 um 14:38 I tried to add the example to the garden, but at least there it doesn’t work: http://wiki.contextgarden.net/Columns
As soon as I use \setupcolors, I get only a single column or the example doesn’t compile at all. Strange.
The garden uses MkIV where \color expects a argument (i.e. \color[<name>]{<argument>}). Below is a example how you can add a colored rule to \startcolumns but the better solution is to switch to MkIV and and use mixedcolumns environment which has a option to change the color of the rule between the columns. \enableregime[utf-8] \mainlanguage[fr] \setupcolors[state=start] % \unexpanded\def\ColumnsRule % {\bgroup % \hskip\dimexpr(1.5\bodyfontsize+\linewidth)/2\relax % \color[red]{\vrule width\linewidth}% % \hskip\dimexpr(1.5\bodyfontsize+\linewidth)/2\relax % \egroup} \definemeasure[columndistance][2em] \setupcolumns[distance=\measure{columndistance}] \unexpanded\def\ColumnsRule {\bgroup \hskip\dimexpr(\measure{columndistance}+\linewidth)/2\relax \color[red]{\vrule width\linewidth}% \hskip\dimexpr(\measure{columndistance}+\linewidth)/2\relax \egroup} \setupcolumns[rule=\ColumnsRule] \starttext \startcolumns \input tufte \stopcolumns \stoptext Wolfgang