Hello, Below is a test file, to show a bit what I'm looking for: a background-image behind a text-area at a given position relative to the center of this area. I'm not yet satisfied with the result. Here my questions: 1.) Is \startframedtext a good choice for placing the background, or is there something better? 2.) Is \framed[loffset=..., toffset=...]{} a good choice for specifying the position, or is there something better? 3.) When "left=1", why is the image completely outside the frame and not only 50%? 4.) How do I make a step between text and background according to http://wiki.contextgarden.net/Presentation_effects ? I would like to show first the text, and after a mouse-click the background image. Thanks in advance for any help! Cheers, Peter The test-file: % Begins a text-area with a background-image: \def\startBGimg[#1]{% \getparameters[BGimg][top=0, left=0, width=2cm, #1]% \start \newdimen\TopOffset \newdimen\LeftOffset \setupframedtexts[before=, after=] \defineoverlay[myBG][{% \TopOffset=\overlayheight \LeftOffset=\overlaywidth \TopOffset=\BGimgtop\TopOffset \LeftOffset=\BGimgleft\LeftOffset \framed[frame=on, width=\overlaywidth, height=\overlayheight, offset=overlay, toffset=\TopOffset, loffset=\LeftOffset]{% \externalfigure[\BGimgimg][width=\BGimgwidth]}}] \startframedtext[background=myBG, frame=off, offset=overlay, width=\textwidth]} % Stops the text-area with a background-image: \def\stopBGimg{\stopframedtext\stop} \starttext \startBGimg[img=hacker.jpg, top=-1, left=-1] \input tufte \stopBGimg \startBGimg[img=hacker.jpg, top=-1, left=1] \input tufte \stopBGimg \startBGimg[img=hacker.jpg, top=1, left=-1] \input tufte \stopBGimg \startBGimg[img=hacker.jpg, top=1, left=1] \input tufte \stopBGimg \stoptext -- Contact information: http://pmrb.free.fr/contact/