# Change fontsize in beamer theme bars

I am creating a beamer presentation and using 10pt fontsize. At that fontsize, the subsection titles that appear in the smoothbars are small. Is there a way to make it larger?

My simple code is

\documentclass[10pt]{beamer}
\usetheme{Ilmenau}

\begin{document}
\section{Section}
\subsection{Subsection}
\begin{frame}
The first frame
\end{frame}
\end{document}


My output is

What I want to achieve is enlarge the fontsize and/or the subsection smooth bar. How to achieve that?

One possibility: First change the beamerfont headline and then reset the beamerfont section in head/foot to \tiny.

\documentclass[10pt]{beamer}
\usetheme{Ilmenau}
\usepackage{lmodern}

\begin{document}
\section{Section}
\subsection{Subsection}
\begin{frame}
The first frame
\end{frame}
\end{document}


• Thank you very much for your answer! The thing is that I want only the subsection font to change and not the section i.e. the bottom bar in the headline. – Thanos Oct 2 '14 at 7:31
• @Thanos See my edited answer. – esdd Oct 2 '14 at 7:57