beamer add tag
Beamer has the option 

\setbeamertemplate{sections/subsections in toc}[ball unnumbered]

Can I have the same option with squares?
Top Answer
There is no built-in option for unnumbered squares, but you can define your own version:


\defbeamertemplate{section in toc}{square unnumbered}
{\leavevmode\raise0.1ex\hbox{\vrule width 1ex height 1ex}\kern1.25ex\inserttocsection\par}

\defbeamertemplate{subsection in toc}{square unnumbered}
{\leavevmode\leftskip=1.5em\raise0.2ex\hbox{\vrule width 0.9ex height 0.9ex}\kern1.25ex\inserttocsubsection\par}

\defbeamertemplate{subsubsection in toc}{square unnumbered}
{\leavevmode\leftskip=3em\raise0.3ex\hbox{\vrule width 0.8ex height 0.8ex}\kern0.75ex\inserttocsubsubsection\par}

\setbeamertemplate{sections/subsections in toc}[square unnumbered]


\section{section name}  
\subsection{section name}
\subsubsection{section name}


![Screen Shot 2021-05-26 at 12.12.48.png](/image?hash=6ffe1c0800ee489cd78919f923faf150b31e2121ca4fc8949d2cedaa928e87e1)

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