在 beamer 中框出定义

Question

我的乳胶代码如下：

\documentclass{beamer}

\begin{document}

\title{Simple Beamer Class} 

\author{Sascha Frank} 

\date{\today} 

\begin{definition}

Two graphs $G=(V,E_1)$ and $H= (V,E_2)$ are said to be isomorphic if there exist a bijective map $\phi : V \mapsto V$ that preserve edges and non-edges

\end{definition}
}

我已经看过这个答案，但它的代码在 beamer 类中不起作用。我想要像这样的盒子这。

Answer 1

周围已经有一个盒子，只是颜色尚未设置。

\documentclass{beamer}

\setbeamercolor{block title}{use=structure,fg=white,bg=structure.fg!75!black}
\setbeamercolor{block body}{parent=normal text,use=block title,bg=block title.bg!10!bg}

\begin{document}

\title{Simple Beamer Class} 

\author{Sascha Frank} 

\date{\today} 

\begin{frame}
\begin{definition}
Two graphs $G=(V,E_1)$ and $H= (V,E_2)$ are said to be isomorphic if there exist a bijective map $\phi : V \mapsto V$ that preserve edges and non-edges
\end{definition}
\end{frame}

\end{document}

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如果盒子只是框架，https://tex.stackexchange.com/a/400987/36296或者https://tex.stackexchange.com/a/367049/36296有帮助。