Meer, H. van der
6. September 2015 13:15
Indeed, this helped. Thanks.

For the record: in order to keep the position of the number in the footnote high, one has to use:
\def\redfootnotenumber#1{\color[red]{\high{#1}}}
\setupnotation[footnote][numbercommand=\redfootnotenumber]
You can use the headcolor key to change the color of the footnote number.

\setupnotation[footnote][headcolor=red]

Wolfgang