4

Does someone know how I can have larger fonts for an item during presentation. Here is what I am trying to do:

\documentclass{beamer}

\begin{document}
    \begin{frame}
        \begin{itemize}
            \item item A
            \pause
            \item item B
            \pause
            \item item C
            \pause
            \item item D
        \end{itemize}
    \end{frame}

\end{document}

So, during the presentation I would like to go through each of the four items (A to D) one by one as follows: First I would like only item A to appear while items B to D should be faded (gray). then I would like to show item B with a slightly enlarged font while items A, C and D are faded. Then I would like to show item C with a slightly enlarged font while items A, B and D are faded, and the font for item B should be the original font. Finally i would like to show item D with a slightly enlarged font with all the other items faded.

Is there a way of achieving this in beamer?

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2 Answers 2

Reset to default
7 
\documentclass{beamer}

\setbeamercovered{again covered={\opaqueness<1->{15}}, dynamic}
\setbeamerfont{alerted text}{size=\huge}
\begin{document}
\begin{frame}   
    Item in default size \huge foo \normalsize

    \begin{itemize}[<+|alert@+>]
        \item item A
        \item item B
        \item item C
        \item item D
    \end{itemize}
\end{frame}
\end{document}

enter image description here

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5
  • I thought about it, but it requires to redefine alert size. I don't find another way to put something in the options of itemize to have the requested behavior. Someone have an idea?
    – Martin Rosalie
    Feb 19, 2016 at 12:43
  • use \setbeamerfont inside the frame, define your own frame style, redefine \itemize, ...
    – user2478
    Feb 19, 2016 at 13:00
  • Thanks again, Lopezo. your solution adequately addresses my problem
    – user95439
    Feb 19, 2016 at 13:06
  • Then can you validate the solution that works for you?
    – Martin Rosalie
    Feb 19, 2016 at 13:11
  • 2
    I think it is better to define a custom action for that \newenvironment{bigenv}{\only{\Large}}{} which can then be used like this \begin{itemize}[<+|big@+>]. So you don't have to mess with alert
    – Benjamin
    Feb 19, 2016 at 13:12
3

This code does not change the size of the police but do the other tricks and I think this is what you look for.

\documentclass{beamer}

\setbeamercovered{again covered={\opaqueness<1->{15}}, dynamic}
\begin{document}
    \begin{frame}
        \begin{itemize}[<+>]
            \item item A
            \item item B
            \item item C
            \item item D
        \end{itemize}
    \end{frame}

\end{document}

With the \Large size but I am not sure it is the optimal LaTeX code but it works.

\documentclass{beamer}

\setbeamercovered{again covered={\opaqueness<1->{15}}, dynamic}
\begin{document}
\begin{frame}
    \begin{itemize}
        \item<+> \only<1>{\Large}item A
        \item<+> \only<2>{\Large}item B
        \item<+> \only<3>{\Large}item C
        \item<+> \only<4>{\Large}item D
    \end{itemize}
\end{frame}
\end{document}
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4
  • Thanks Lopezo. I think it would be nice to be able to achieve the font enlargement as well.
    – user95439
    Feb 19, 2016 at 9:33
  • I edit my answer with the enlargement.
    – Martin Rosalie
    Feb 19, 2016 at 10:56
  • @Lopezo I think it would make more sense to use \only instead of \temporal as you don't need the replacement functionality of \temporal.
    – Benjamin
    Feb 19, 2016 at 11:27
  • @Benjamin Thanks, indeed, it's better. I update the post.
    – Martin Rosalie
    Feb 19, 2016 at 12:15

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