如何仅在一张幻灯片中更改脚注颜色？

Question

出于某种原因，我想更改幻灯片中引文的颜色。我使用此处发布的代码

为什么 \footcite 在 beamer 中不起作用？

作为一名 MWE。

\documentclass{beamer}
\usepackage[style=verbose]{biblatex}

\usepackage{filecontents}% to embed the file `myreferences.bib` in your `.tex` file
\begin{filecontents*}{myreferences.bib}
@online{foo12,
  year = {2012},
  title = {footnote-reference-using-european-system},
  url = {https://tex.stackexchange.com/questions/69716/footnote-reference-using-european-system},
}
\end{filecontents*}

% File is created and written to disk by the above package
\addbibresource{myreferences.bib}

\begin{document}

\begin{frame}
footcite is in default color blue here.\footcite{foo12}
\end{frame}

\begin{frame}
How to make footcite red color here.\footcite{foo12}
\end{frame}

\begin{frame}
\printbibliography
\end{frame}

\end{document}

我该怎么做？我尝试使用 \color{red} 使引用显示为红色，但没有效果。

Answer 1

要在一帧内局部改变颜色，请将命令放入例如里面，{}以便将更改保持在此组内。

\documentclass{beamer}
\usepackage[style=verbose]{biblatex}

\usepackage{filecontents}% to embed the file `myreferences.bib` in your `.tex` file
\begin{filecontents*}{myreferences.bib}
@online{foo12,
  year = {2012},
  title = {footnote-reference-using-european-system},
  url = {http://tex.stackexchange.com/questions/69716/footnote-reference-using-european-system},
}
\end{filecontents*}

% File is created and written to disk by the above package
\addbibresource{myreferences.bib}

\begin{document}

\begin{frame}
footcite is in default color blue here.\footcite{foo12}
\end{frame}

{
\setbeamercolor{footnote mark}{fg=red}
\setbeamercolor{footnote}{fg=red}
\begin{frame}
How to make footcite red color here.\footcite{foo12}
\end{frame}
}

\begin{frame}
    footcite is in default color blue here.\footcite{foo12}
\end{frame}

\begin{frame}
\printbibliography
\end{frame}

\end{document}