I'm trying to set a default width for figures with \setupfloat. However, the command doesn't seem to be picking up the width specification, even though the manual indicates it accepts a width= argument:

\setupfloat[figure][width=2cm]

\starttext

\placefigure{}{\externalfigure[picture.png]}

\stoptext

picture.png just gets inserted at its native size, rather than scaled to have the specified width. What am I doing wrong? (setting minwidth and/or maxwidth doesn't seem to work either)

Thanks in advance for any assistance.

Mark