beamerthemeteslabs.sty

% colors
\definecolor{base-color}{RGB}{87, 173, 104}

% serif font for mathematical formulas
\usefonttheme[onlymath]{serif}

% structure color is base-color
\setbeamercolor{structure}{fg=base-color}

% no navigation bar
\setbeamertemplate{navigation symbols}{}

% no icons on bibliography
\setbeamertemplate{bibliography item}{}

% bibliography colors
\setbeamercolor{bibliography entry author}{fg=black}
\setbeamercolor{bibliography entry title}{fg=black}
\setbeamercolor{bibliography entry location}{fg=black}
\setbeamercolor{bibliography entry note}{fg=black}

% custom title page
\makeatletter
\setbeamertemplate{title page}
{
  \vbox{}
  \vfill
  \begin{centering}
    \includegraphics[scale=0.4]{theme/logo.png}\par
    \vskip3em\par
    \setbeamerfont{title}{series=\bfseries,size=\huge}
    \setbeamercolor{title}{bg=white,fg=structure}
    \begin{beamercolorbox}[center]{title}
      \usebeamerfont{title}\inserttitle
    \end{beamercolorbox}
    \begin{beamercolorbox}[center]{subtitle}
      \ifx\insertsubtitle\@empty%
      \else%
        \vskip0.25em%
        {\usebeamerfont{subtitle}\usebeamercolor[fg]{subtitle}%
          \insertsubtitle\par}%
      \fi%
    \end{beamercolorbox}%
    \vskip2em\par
    \begin{beamercolorbox}[center]{author}
      \usebeamerfont{author}\insertauthor
    \end{beamercolorbox}
    \begin{beamercolorbox}[center]{date}
      \usebeamerfont{date}\insertdate
    \end{beamercolorbox}%
    \vskip0.5em
  \end{centering}
  \vfill
}
\makeatother

% custom frame title
\setbeamerfont{frametitle}{series=\bfseries}
\setbeamertemplate{frametitle}
{%
  \begin{centering}
    \insertframetitle\par
  \end{centering}
}

% custom frame footer
\setbeamerfont{footline}{size=\fontsize{9}{12}}
\setbeamertemplate{footline}
{%
  \hbox{%
  \begin{beamercolorbox}[wd=.333333\paperwidth,
                         ht=4.25ex,
                         dp=1ex,
                         left]{structure}
    \raisebox{.5\baselineskip}{%
      \parbox[t][4ex][t]{.333333\paperwidth}{%
        \raisebox{-.3\height}{%
          \hskip2ex\includegraphics[height=3ex]{theme/logo.png}%
        }%
      }%
    }
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.333333\paperwidth,
                         ht=4.25ex,
                         dp=1ex,
                         center]{structure}%
    \raisebox{.5\baselineskip}{%
      \parbox[t][4ex][t]{.333333\paperwidth}{%
        \centering\insertsection%
      }%
    }
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.333333\paperwidth,
                         ht=4.25ex,
                         dp=1ex,
                         right]{structure}%
    \raisebox{.5\baselineskip}{%
      \parbox[t][4ex][t]{.333333\paperwidth}{%
        \raggedleft\insertframenumber\hspace*{2ex}%
      }%
    }
  \end{beamercolorbox}}%
}%