[Groff] colored background?

[Michael(tm) Smith]

Is there an recommended way to create a background in an alternate
color for a certain block of text?

I ask because for program listings and other "verbatim" output,
dblatex and the DocBook XSL stylesheets for FO output cause the
output to be rendered with a light-gray background. That really
helps to set the program listing off from the rest of text.

So I'm wondering if I might be able to achieve a similar effect in
the PS output from DocBook-generated man pages.

  --Mike

-- 
Michael(tm) Smith
http://people.w3.org/mike/
http://sideshowbarker.net/

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