Change bg color of block body

[Michael Kubovy]

Dear Friends of beamer.cls,

I have some pictures in which the background is white. When they appear on the light blue background of a block, they are ugly. How can I change the background of the block body to white for those slides?

_____________________________

Professor Michael Kubovy

University of Virginia

Department of Psychology

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[Kjell Magne Fauske]

On Thu, Oct 2, 2008 at 4:26 PM, Michael Kubovy <kubovy@...> wrote:
> Dear Friends of beamer.cls,
> I have some pictures in which the background is white. When they appear on
> the light blue background of a block, they are ugly. How can I change the
> background of the block body to white for those slides?
>

This should to the trick:

{
\setbeamercolor{background canvas}{bg=white}
\begin{frame}
...
\end{frame}
}

By wrapping everything inside a TeX-group {..} the changes are kept local

- Kjell Magne Fauske

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[Kjell Magne Fauske]

On Thu, Oct 2, 2008 at 5:44 PM, Michael Kubovy <kubovy@...> wrote:
> Hi,
> As far as I can tell, this doesn't change the bg color inside
> \begin{block}
> \end{block}
> only the frame bg is changed by the suggested method.
>

You are right. To set the block background use:
\setbeamercolor{block body}{bg=white}
like in this example:

\documentclass{beamer}
\usecolortheme{albatross}
\begin{document}
{
\setbeamercolor{block body}{bg=white}
\begin{frame}

\begin{block}
some text
\end{block}
...
\end{frame}
}

\end{document}

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