[NTG-context] New example, Distance between the background and the frame not wanted

Dear List, I have a little new example. What I do like to know: what command do I use, if I do not want a distance between the blackrule and the frame? I know, it is a problem with the distance, but I do not know the right command. \setuppapersize[A4] \blackrule[color=darkmagenta, height=3.ex, width=13.50cm]\par \defineframed [Me] [background=color,backgroundcolor=darkmagenta] \Me[frame=on, corner=rectangular, topframe=off, bottomframe=off, framecolor=blue]{Hello} \stoptext Many thanks Uschi