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In this case consecutive items get covered. How could I change this behaviour so that all items would be black and only bullets would get different colours?

\documentclass{beamer}
\setbeamercovered{transparent}

\begin{document}

\begin{frame}
\frametitle{Title}
\begin{itemize}
 \item<1-> First
 \item<2-> Second
 \item<3-> Third
\end{itemize}
\end{frame}

\end{document}

Desired effect

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2  
Check the beameruserguide for alert. Like \begin{itemize}[<alert@+>] –  bloodworks Feb 28 '13 at 15:24
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1 Answer

up vote 3 down vote accepted

My answer, adapted from the example in the Beamer user guide, p82:

 \documentclass{beamer}

\def\colorize<#1>{%
    \temporal<#1>{%
        \setbeamercolor{item}{fg=blue}%
    }{%
        \setbeamercolor{item}{fg=red}%
    }{%
        \setbeamercolor{item}{fg=blue}%
    }
}

\setbeamertemplate{itemize item}[triangle]

\begin{document}

\begin{frame}
\frametitle{Title}
\begin{itemize}
 \colorize<1> \item First
    \begin{itemize}
        \colorize<2> \item First a
        \colorize<3> \item First b
    \end{itemize}
 \colorize<4> \item Second
 \colorize<5> \item Third 
\end{itemize}

There must be a better way of doing it though. Does anyone know how to redefine \item so as to get the desired output without having to use an extra command (\colorize here) in front of each \item?

EDIT: \colorize is now compatible with all levels of itemize environments.

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what about the itemize inside itemize? it's not working! –  liberias Feb 28 '13 at 19:59
1  
I'm not sure I approve of your exclamation mark... Is it supposed to convey urgency or irritation? Anyway, you get the result you want by substituting item for itemize item in the definition of `\colorize'. –  Jubobs Feb 28 '13 at 20:09
1  
sorry for the exclamation mark, tomorrow i have to present my thesis and i'm a bit nervous :] –  liberias Feb 28 '13 at 20:14
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