\Picture{sample/cow.pdf}{All your base are belong to us}{SampleRef}
\stoptext
</context>
== Colorored horizontal stripe of full paper width ==
<context mode="mkiv" source="yes">
\definepapersize[sheet][width=120mm,height=60mm]
\setuppapersize[sheet]
\setuppagenumbering[location=]
\setuplayout[width=110mm,backspace=5mm,topspace=5mm,header=5mm,headerdistance=5mm,footer=5mm,footerdistance=5mm]
\showframe
\setupbackgrounds[page] [background=color, backgroundcolor=lightgray]
\startuniqueMPgraphic{whatever}
fill OverlayBox
leftenlarged BackSpace rightenlarged CutSpace
withcolor OverlayColor;
setbounds currentpicture to OverlayBox enlarged max(BackSpace,CutSpace);
\stopuniqueMPgraphic
\defineoverlay[whatever][\uniqueMPgraphic{whatever}]
\starttext
Here some text first.
\framed[background=whatever,backgroundcolor=green,frame=off,width=\textwidth]{test}
After, again some text.
\stoptext
</context>