Hello evryone!

 

I have just a problem. 

 

I want the colored header only in the middle where the text is written, but
not in the margin. 

 

\setuppapersize[A4]

 

 

\setupbackgrounds[header][background=color, backgroundcolor=gray]

\setupbackgrounds[leftmargin][background=color, backgroundcolor=white]

This is me

 

Thanks 

 

Uschi