\usetheme{Pittsburgh}
\usecolortheme{fly}

\setbeamercolor{normal text}{fg=white,bg=black}
\setbeamertemplate{navigation symbols}{} 

\setbeamertemplate{frametitle} 
{ 
\begin{centering} 
{\insertframetitle} 
\par 
\end{centering} 
} 

\usebeamerfont{large font}
\setbeamerfont{frametitle}{size=\Large}
\setbeamercolor{frametitle}{fg=blue!50}
\def\colorize<#1>{
  \temporal<#1>{\color{black}}{\color{blue!50}}{\color{white}}
}

\setlength\parindent{0.0in}
\setlength\parskip{0.10in} 

% Color for haskell types signatures.
\definecolor{type}{rgb}{1.00,0.80,0.40} 
\newcommand{\type}[1]{\textcolor{type}{#1}}
\newcommand{\regular}[1]{\textcolor{white}{#1}}