1

I have a simple presentation:

\documentclass{beamer}

\usecolortheme{seahorse}
\useoutertheme{infolines}
\setbeamertemplate{headline}[default]
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{itemize items}[triangle]
\setbeamertemplate{enumerate items}[default]
\setbeamertemplate{section in toc}{\inserttocsectionnumber.~\inserttocsection}
\setbeamertemplate{subsection in toc}{\hspace{1.2 em}\inserttocsubsectionnumber.~\inserttocsubsection \\}


\begin{document}

\section{A}
\frame{\tableofcontents[currentsection]}

\subsection{A.1}
\begin{frame}
\end{frame}
\subsection{A.2}
\begin{frame}
\end{frame}

\end{document}

The table of contents looks like this

table of contents

How do I display the standard Beamer triangle that the itemize environment uses (under the settings I'm using, i.e. \setbeamertemplate{itemize items}[triangle]).

p120 of the Beamer user guide implies that the symbol is $\blacktriangleright$, but at the risk of stating the obvious, that displays a black triangle. That ignore the color theme I specified.

3

You can colour the black triangle, for example \textcolor{structure.fg}{$\blacktriangleright$} will colour it in the blue colour which is the default colour of the itemize items.

\documentclass{beamer}

\usecolortheme{seahorse}
\useoutertheme{infolines}
\setbeamertemplate{headline}[default]
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{itemize items}[triangle]
\setbeamertemplate{enumerate items}[default]
\setbeamertemplate{section in toc}{\inserttocsectionnumber.~\inserttocsection}
\setbeamertemplate{subsection in toc}{\textcolor{structure.fg}{$\blacktriangleright$}\hspace{1.2 em}\inserttocsubsectionnumber.~\inserttocsubsection \\}


\begin{document}

\section{A}
\frame{\tableofcontents[currentsection]}

\subsection{A.1}
\begin{frame}
\end{frame}
\subsection{A.2}
\begin{frame}
\end{frame}

\end{document}

enter image description here

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