beamerthememi.sty

% Mi theme
% https://github.com/roehrt/mi

\mode<presentation>

% ===
% Requirements
% === 
\RequirePackage{scrextend}
\RequirePackage{lmodern}
\RequirePackage[normalem]{ulem}

% ===
% Color settings
% === 
\setbeamercolor*{title page header}{fg=black}
\setbeamercolor*{author}{fg=black}
\setbeamercolor*{date}{fg=black}
\setbeamercolor*{frametitle}{fg=black}
\setbeamercolor*{normal text}{fg=black}
\setbeamercolor*{background canvas}{bg=white}
\setbeamercolor*{item}{fg=black!60}

% ===
% Font settings
% ===
\changefontsizes{14pt}
\usefonttheme{serif}
\setbeamerfont{title page title}{size=\Huge}
\setbeamerfont{title page subtitle}{size=\Large}
\setbeamerfont{frametitle}{size=\huge}
\setbeamerfont{framesubtitle}{size=\normalsize}
\setbeamerfont{caption}{size=\footnotesize}

% ===
% Misc
% === 
\setbeamertemplate{caption}[numbered]
\setbeamertemplate{navigation symbols}{\insertslidenavigationsymbol}

% ===
% Macros
% === 
\newcommand{\micenter}[1]{
    \centering
    \hspace{0pt}
    \vfill

    #1

    \vfill
    \hspace{0pt}
}
\newcommand{\mititle}[1]{{\huge#1\leavevmode\par}}
\newcommand{\milarge}[1]{{\Large#1\leavevmode\par}}
\newcommand{\mifullimage}[2][\relax]{
    \begin{figure}[h!]
        \centering
        \includegraphics[width=\textwidth,height=0.8\textheight,keepaspectratio]{#2}
        \ifx\relax#1\else\caption{#1}\fi
    \end{figure}
}
\newcommand{\mifullwidthimage}[2][\relax]{
    \begin{figure}[h!]
        \centering
        \includegraphics[width=\textwidth,keepaspectratio]{#2}
        \ifx\relax#1\else\caption{#1}\fi
    \end{figure}
}
\newcommand{\mifullheightimage}[2][\relax]{
    \begin{figure}[h!]
        \centering
        \includegraphics[height=0.8\textheight,keepaspectratio]{#2}
        \ifx\relax#1\else\caption{#1}\fi
    \end{figure}
}
\newcommand{\miimageframe}[2][\relax]{
    \begin{frame}
        \mifullimage[#1]{#2}
    \end{frame}
}
\newcommand{\mitextframe}[1]{
    \begin{miframe}
        \mititle{#1}
    \end{miframe}
}
\newcommand{\misection}[2][\relax]{
    \ifx\relax#1\section{#2}\else\section{#1}\fi
    \begin{miframe}
        \mititle{\uline{\arabic{section}.~#2}}%
    \end{miframe}
}

% ===
% Frame templates
% ===
\newenvironment{miframe}{
    \begin{frame}
        \centering
        \hspace{0pt}
        \vfill
}{
        \vfill
        \hspace{0pt}
    \end{frame}
}

\BeforeBeginEnvironment{frame}{\centering}

\defbeamertemplate*{title page}{mi}[1][]
{ 
    \micenter{
        {\linespread{0.8}\usebeamerfont{title page title}\usebeamercolor[fg]{title page}\inserttitle\leavevmode\par}
        {\usebeamerfont{title page subtitle}\usebeamercolor[fg]{title page}\insertsubtitle\leavevmode\par}
    }
}

\defbeamertemplate*{frametitle}{mi}[1][]
{ 
    \centering
    \hspace{0pt}
    \vskip1ex
    {\usebeamerfont{frametitle}\usebeamercolor[fg]{frametitle}\insertframetitle\leavevmode\par}
}

\mode<all>