[NTG-context] Color in a Columntext, how does it work?

Dear List, I have tried an example, where I would like to have sentences in color in a column, but there is something wrong. \setuppapersize [A5] \starttext % hex \definecolor=[MediumViolet][h=8F47B3] \startcolumns[rule=on,n=2,tolerance=verytolerant, foregroundcolor=Mediumviolet] Thus, I came to the conclusion that the designer of a new system must not only be the implementer and first .. \bf D.E. Knuth} \stopcolumns \stoptext Many thanks Uschi