beamerinnerthemepadua.sty

\mode<presentation>

\setbeamertemplate{background}{
  \begin{tikzpicture}
  \useasboundingbox (0,0) rectangle(\the\paperwidth,\the\paperheight);
  \fill[color=cprimary] (0,2) rectangle (\the\paperwidth,\the\paperheight);
  \fill[color=cbackground] (0,0) rectangle(2.95,1.9);
   \node[inner sep=0pt] (russell) at (1.475,0.95)
    {\includegraphics[width=0.25\textwidth]{big_logo.png}
   };
  \fill[color=ctertiary] (3.05,0) rectangle(\the\paperwidth,1.9);
  \ifnum\thepage>1\relax%
   \fill[white,opacity=1] (0,0) rectangle(\the\paperwidth,\the\paperheight);
   \fi
  \end{tikzpicture}
}

% Title page
\defbeamertemplate*{title page}{texsx}[1][]
{ 
   \vskip2cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=0.4\paperwidth,sep=8pt,#1]{title page header}
      \usebeamerfont{title}\inserttitle\par%
    \end{beamercolorbox}%
    \vskip1cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=3cm,sep=8pt,#1]{subtitle}
      \usebeamerfont{subtitle}\insertsubtitle\par%
    \end{beamercolorbox}%
    \vskip3cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=3cm,#1]{author}
      \usebeamerfont{author}\insertauthor%
    \end{beamercolorbox}
     \vskip0.2cm%
    \begin{beamercolorbox}[wd=12cm,leftskip=3cm,#1]{date}
      \usebeamerfont{author}\insertdate%
    \end{beamercolorbox}
    
  \vfill
}


\mode
<all>