[NTG-context] overlay page background missing

[Paul Jones]

Hello all,

I am trying to put together a wedding book.  I would like a nice
watermark behind the text on each page.  Left page containing the word
'together', and right page containing the word 'forever'.  I can get
this done with an overlay, but it is always centered in the page.  So
after reading some threads about layers in overlays I thought this
might work.  Putting a layer into an overlay does give me the ability
to positiong the words, but I can no longer get them to show up on all
of the pages.  Am I doing this in a resonable way?  Why did the
setupbackgrounds stop working when I put the layer into the overlay?

Much thanks,
Paul

%output=pdf
\setuppagenumbering[alternative=doublesided]

\setupcolors[state=start]

\setupbackgrounds[page][background={WatermarkOverlay}]

\startsetups WatermarkSetup
         \doifoddpageelse
                {\framed[frame=off,foregroundcolor=gray]
                {\scale[sx=12,sy=12]
                {\rotate[rotation=20.0]{forever}}}}

                {\framed[frame=off,foregroundcolor=gray]
                {\scale[sx=12,sy=12]
                {\rotate[rotation=20.0]{together}}}}
\stopsetups

\definelayer[WatermarkLayer]
\setlayer[WatermarkLayer][hoffset=-4cm,voffset=12cm]{\setups{WatermarkSetup}}

\defineoverlay[WatermarkOverlay][{\placelayer[WatermarkLayer]}]


\starttext
\framed[height=\textheight, width=\textwidth,
background={WatermarkOverlay}, frame=on]{overlay frame}
\chapter{first}  \dorecurse{10}{\input tufte  }
\chapter{second} \dorecurse{10}{\input davis  }
\chapter{third}  \dorecurse{10}{\input zapf   }
\stoptext