Beamer: How to change the default color of covered text?

Question

When I write:

\begin{itemize}
    \item<1-> a b c
    \item<2-> d e f
\end{itemize}

in slide 1, the second item "d e f" is shown in grey. I want it to be white. Is there a way to make this behavior default for the entire presentation?

Here there are many examples for the \setbeamercolor command, but, I did not find any example relevant for changing only the color of covered text.

Answer 1

I assume the instruction

\setbeamercovered{transparent}

is somewhere in your document's preamble, along with (I would hope) \beamerdefaultoverlayspecification{<+->}. Change the instruction to

\setbeamercovered{invisible}

to make the covered items, well, invisible.

A full MWE:

\documentclass{beamer}
\usefonttheme{professionalfonts}
\mode<presentation>
\beamerdefaultoverlayspecification{<+->} % optional but handy
\setbeamercovered{invisible} % or: 'transparent', 'dynamic', ...

\begin{document}
\begin{frame}
\begin{itemize}
    \item a b c
    \item d e f
    \item g h i
\end{itemize}
\end{frame}
\end{document}