# Adding color to the footnote mark in Beamer

I'd like to change the color of a footnote, both the text and the mark in a presentation I'm preparing using beamer. The example I give below works in article but not in beamer...any ideas why not?

%\documentclass{article} %works.
\documentclass{beamer}   %does not work.
\usepackage{color}
\renewcommand{\thefootnote}{\color{red}\fnsymbol{footnote}}
\begin{document}
\begin{frame}
Thus we expand every part of the solution, $u, U, V$, and $\lambda$
as an asymptotic series\footnote{\color{red}This is
actually a lie\ldots but don't tell anyone}:
\end{frame}
\end{document}

-

You could use the beamer class command \setbeamercolor for coloring footnotes and footnote marks, for example:
\setbeamercolor{footnote}{fg=red}

OMM if I do \setbeamercolor{footnote}{fg=green}\setbeamercolor{footnote mark}{fg=red} I get both footnote mark and text in red, not a mark in red and text in green as I would expect. The line separating main text from the footnote is green, though. –  Matthew Leingang Nov 29 '10 at 13:51
The footnote text is red by default. More testing: \setbeamercolor{footnote}{fg=blue}\setbeamercolor{footnote mark}{fg=green} make the footnote rule blue, the foonote mark green, but the footnote text remains red. –  Matthew Leingang Nov 29 '10 at 14:08
Now I get it. I was testing on the OP's sample code, which put \color{red} into the footnote argument. Never mind! –  Matthew Leingang Nov 29 '10 at 14:20