\documentclass[aspectratio=169]{beamer}
\usetheme{th-owl}

\input{Packages.tex}

\def \TITLE{Example Title}
\def \SUBTITLE{Example Subtitle}
\def \AUTHOR{Example Author}
\def \DATE{Example Date}

\begin{document}
    
    \input{TitlePage.tex}

    \input{Content.tex}

\end{document}