beamerinnerthemeusyd.sty

\mode<presentation>
\usepackage{etoolbox}
\setbeamertemplate{background}
{%
  \begin{tikzpicture}
    \ifnum\thepage=1\relax%
    \useasboundingbox (0,0) rectangle(\the\paperwidth, \the\paperheight);
    \fill[color=usydred] (0,0) rectangle (0.5*\the\paperwidth, \the\paperheight);
    \fill[color=\USYD@titlegraphicbackground] (0.5*\the\paperwidth,0) rectangle (\the\paperwidth, \the\paperheight);
    \node[inner sep=0pt] (titlegraphic) at (0.75*\paperwidth, 0.5*\paperheight) {\includegraphics[width=0.5\paperwidth]{\USYD@titlegraphic}};
    \hskip-10pt
    \node[inner sep=0pt] (logo) at (2.2, 1.2) {\usebeamertemplate*{logo titlepage}};
    \node[inner sep=0pt] (logo) at (6.4, 1.4) {\usebeamertemplate*{affiliationlogo titlepage}};
    \else
    \fill[usydwhite,opacity=1] (0,0) rectangle (\the\paperwidth, \the\paperheight);
    \fi
  \end{tikzpicture}
}

\defbeamertemplate*{title page}{usyd}[1][]
{%
    \newlength\beamertitlebox
    \setlength\beamertitlebox{\dimexpr0.5\paperwidth-\Gm@lmargin}
    \begingroup
    \hskip-10pt
    \begin{beamercolorbox}[sep=0pt, wd=\beamertitlebox, #1]{title}
        \usebeamerfont{title}\inserttitle\par%
        \ifx\insertsubtitle\@empty\par%
        \else%
          \vskip0.25em%
          {\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}\insertsubtitle\par}%
        \fi%
    \end{beamercolorbox}\vskip2em
    \hskip-10pt
    \begin{beamercolorbox}[sep=0pt, wd=\beamertitlebox, #1]{author}
        \usebeamerfont{author}\insertauthor%
    \end{beamercolorbox}\vskip1em
    \hskip-10pt
    \begin{beamercolorbox}[sep=0pt, wd=\beamertitlebox, #1]{date}
        \usebeamerfont{date}\insertdate%
    \end{beamercolorbox}
    \endgroup
}

\defbeamertemplate*{footline}{usyd}
{%
  \ifnum\thepage=1\relax%
    % Transparent colorbox for titlepage
    \begin{beamercolorbox}[wd=\paperwidth,ht=3ex,dp=4ex]{placeholder}%
    \end{beamercolorbox}%
  \else
    \begin{beamercolorbox}[wd=\paperwidth,ht=3ex,dp=4ex,leftskip=4em, rightskip=4em]{institute in footline}%
    University of Sydney\hfill\insertframenumber{}%
    \end{beamercolorbox}%
  \fi
}%

\defbeamertemplate*{logo titlepage}{usyd}
{\includegraphics[width=2.4cm]{\USYD@logo}}

\defbeamertemplate*{affiliationlogo titlepage}{usyd}
{\ifdefempty{\USYD@affiliationlogo}{}{\includegraphics[width=2.2cm]{\USYD@affiliationlogo}}}


\defbeamertemplate*{logo}{usyd}
{\includegraphics[height=3em]{\USYD@logo}}

\defbeamertemplate*{sidebar right}{usyd}{}

\setbeamertemplate{navigation symbols}{}

\mode<all>