\documentclass[aspectratio=169]{beamer}
\usetheme{Bruno}

\title{Bruno sample slides}
\author{
    Rémi Cérès \and
    Mattéo Delabre
}
\institute{Université de Montpellier}
\date{\today}
\background{background.jpeg}

\begin{document}

\maketitle

\begin{frame}{This is a sample slide}
\begin{itemize}
    \item This presentation is meant to demonstrate the Bruno Beamer theme.
    \item Inspired from the Metropolis theme.
    \item Lightweight structure and non-intrusive colors.
    \item Gives priority on content over slide elements.
\end{itemize}
\end{frame}

\end{document}