Gray Shading in Latex

[Saeed Ghahramani]

> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Dear Friends,
>
> I need help on an issue, which you might be able to help or refer me to
> the appropriate sources. For a new book contract, I need to put certain
> parts of the text inside boxes that are gray-shaded. As you know, these
> days, many books do that. Do you know what should I do to achieve this?
> If there are files that I
> need to down load where can I find them, and in which of the Y and Y
> subdirectories should I copy them? If the necessary tools already have
> been installed with the usual Y and Y installation, what command(s)
> should I use?
>
> I really appreciate your help.
>
> --Saeed Ghahramani
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=