%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 11-4-37 on page 795.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

% Show page(s) 1,2,3

\documentclass{ttctbeamer}
% graphic converted to gray in book

\StartShownPreambleCommands
\usepackage{beamerthemeMalmoe}
\usepackage{beamerouterthemesidebar}
\usepackage{beamercolorthemedove}
\StopShownPreambleCommands

\begin{document}
\section{The Canvas}
\setbeamertemplate{background canvas}
   {\put(120,-230){\rotatebox{45}
         {\scalebox{5}{\textcolor{gray!20}{DRAFT}}}}}
\begin{frame}
  \frametitle{The canvas background}
   A watermark on all slides until redefined.
\end{frame}

\section{The background}
\setbeamertemplate{background}[grid]
                  [step=0.5cm,color=red!20]
\begin{frame}
  \frametitle{The background setting}
  Second and third slide additionally gets a grid.
\end{frame}

\section{Shaded canvas}
\setbeamertemplate{background canvas}
                  [vertical shading][top=blue!25]
\setbeamercolor{normal text}{fg=red}
\usebeamercolor[fg]{normal text}
\begin{frame}
  \frametitle{Text on the frame background}
  \framesubtitle{Text foreground and background color}
  Here background color shading is used and the
  text color is changed to red---Not a very
  useful combination.
\end{frame}
\end{document}