Il n'y a pas de ECM donc je suppose que le thème est `default` ... \documentclass{beamer} \setbeamerfont{section in toc}{series=\bfseries, size=\Large} \setbeamerfont{section name}{series=\bfseries, size=\Large} \AtBeginSection{ \begin{frame} \sectionpage \end{frame} } \begin{document} \begin{frame} \tableofcontents \end{frame} \section{title} \begin{frame} aaa \end{frame} \end{document} ![alt text][1] [1]: https://texnique.fr/osqa/upfiles/Screen_Shot_2020-06-15_at_14.58.02.png

Il n'y a pas de ECM donc je suppose que le thème `default` ... \documentclass{beamer} \setbeamerfont{section in toc}{series=\bfseries, size=\Large} \setbeamerfont{section name}{series=\bfseries, size=\Large} \AtBeginSection{ \begin{frame} \sectionpage \end{frame} } \begin{document} \begin{frame} \tableofcontents \end{frame} \section{title} \begin{frame} aaa \end{frame} \end{document} ![alt text][1] [1]: https://texnique.fr/osqa/upfiles/Screen_Shot_2020-06-15_at_14.58.02.png

\documentclass{beamer} \setbeamerfont{section in toc}{series=\bfseries, size=\Large} \setbeamerfont{section name}{series=\bfseries, size=\Large} \AtBeginSection{ \begin{frame} \sectionpage \end{frame} } \begin{document} \begin{frame} \tableofcontents \end{frame} \section{title} \begin{frame} aaa \end{frame} \end{document}\end{document} ![alt text][1] [1]: https://texnique.fr/osqa/upfiles/Screen_Shot_2020-06-15_at_14.58.02.png

\documentclass{beamer} \setbeamerfont{section in toc}{series=\bfseries, size=\Large} \setbeamerfont{section name}{series=\bfseries, size=\Large} \AtBeginSection{ \begin{frame} \sectionpage \end{frame} } \begin{document} \begin{frame} \tableofcontents \end{frame} \section{title} \begin{frame} aaa \end{frame} \end{document}