Text Formatting ⇒ Boxed or shaded Theorem

[tshah]

Hello all,

I've been trying to make shaded theorems in my latex book. It is using the amsbook class. I've copied a bunch of examples from online and they work when I try them as an article class, but when I move them into an amsbook file then the shading becomes black and I can't see anything. For example, this works on its own, but if I move it into an amsbook file then the shading turns black. Any help would be appreciated.

Code: Select all

\documentclass{article}
\usepackage{xcolor}
\usepackage{amsthm}
\usepackage{framed}
\colorlet{shadecolor}{gray!50}
\newtheorem{theorem}{Theorem}
\newenvironment{theo}
  {\begin{shaded}\begin{theorem}}
  {\end{theorem}\end{shaded}}
\begin{document}
\begin{theo}
Some important theorem.
\end{theo}
\end{document}

[tshah]

Nevermind. I figured it out. I had this:

Code: Select all

\documentclass[12pt, oneside,dvipdf]{amsbook}

when I took out the dvipdf the shading worked and it wasn't all black.