I, too, do not understand the
\definetextbackground
\starttextbackground
\stoptextbackground
commands, even though I tried looking at "details.pdf" (and core-pgr.tex).
My particular problem is rather classic, that of illustrating examples, set off
from the main text.
I first used
\defineframedtext [example]
[width=fit,background=screen,backgroundscreen=0.7]
\startexample
...
\stopexample
and this is appropriate if the example is short enough to fit on one page.
However, a long example (many paragraphs) that spans more than one page
runs off the bottom.
Textbackground seems more appropriate, so I tried
\definetextbackground [example]
[location=paragraph,backgroundcolor=middlegray,frame=off]
\definestartstop [example]
[before={\starttextbackground[example]},after=\stoptextbackground]
but this does not work. I tried other variants (such as adding state=start,
...) with no success.
Does anyone have suggestions on where to look for further documentation or
examples of use?
Thanks.
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