color band

[Idris S Hamid <ishamid@lamar.colostate.edu>]

Dear syndicate,

For a book cover I want a green-colored rectangular band, centered, at
the very top of the page, with text in some other color (to be
determined) overlapping the band. The band is small, just, say, 2cm high
and 12 cm wide. Since it's at the top it is surrounded by white on only
three sides. I'm not even sure where to get started here (I don't think
the LaTeX Graphics Companion will be much help:->)

Here is part of my present layout. I'll have to put this band in the
topspace and increase it, I presume:

\definepapersize[journal][width=5.5in,
                        height=8.5in]
\setuppapersize[journal][letter]

\setuplayout[width=middle,
|             height=19cm,
|             footer=0cm,
|             header=0cm,
|             topspace=28pt,
|             location={middle,doublesided},
|             marking=on]

I hope the solution is Plain-compatible since I may have to use Gamma
for some Arabic insertions. Otherwise I'll have to eps those insertions.

Thnx in advance
Idris