Hello,
How to make the numbering is in the frame and red ?

\defineenumeration
  [ac]
  [text={
         \inframed[frame=off,
         width=fit,
         align={right},
         background=color,
         backgroundcolor=lightgray]{Activité}},
         headstyle={\bf\feature[+][f:smallcaps]},
         width=fit,
         stopper={.},
         alternative=left,
   ]
\starttext
\startac
Tirage dans une urne
\stopac
\stoptext

thank you,
Fabrice