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diff --git a/Master/texmf-dist/doc/latex/beamertheme-epyt/README b/Master/texmf-dist/doc/latex/beamertheme-epyt/README
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+Package epyt: a simple and clean theme for LaTeX beamer class
+Copyright (C) 2013-2015 Zou Hu <zohooo@yeah.net>
+
+Please report bugs, problems, and suggestions via
+    https://github.com/zohooo/epyt
+
+The package may be distributed and/or modified under the conditions
+of the LaTeX Project Public License, either version 1.3 of this
+license or (at your option) any later version. The latest version
+of this license is in
+    http://www.latex-project.org/lppl.txt
diff --git a/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo-cn.pdf b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo-cn.pdf
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--- /dev/null
+++ b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo-cn.pdf
diff --git a/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo-cn.tex b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo-cn.tex
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+% -*- coding: utf-8 -*-
+% !TEX program = xelatex
+
+\documentclass[14pt,notheorems,xcolor={rgb}]{beamer}
+
+\usetheme[style=beta]{epyt} % alpha, beta, delta, gamma, zeta
+
+\usepackage{arev} % use arev sans font
+
+\usepackage[UTF8,noindent]{ctex}
+
+\setlength{\parskip}{5pt plus 1pt minus 1pt}
+
+\usepackage{listings}
+\lstset{
+  basicstyle=\ttfamily,xleftmargin=0em,
+  commentstyle=\color{teal},keywordstyle=\color{accent4},
+  language=[LaTeX]{TeX},morekeywords={usetheme,epytsetup}
+}
+
+\newcommand{\mylead}[1]{\textcolor{accent1}{#1}}
+\newcommand{\mybold}[1]{\textcolor{accent2}{#1}}
+\newcommand{\mywarn}[1]{\textcolor{accent3}{#1}}
+
+\newtheorem{theorem}{定理}
+\newtheorem{definition}[theorem]{定义}
+\newtheorem{example}[theorem]{例子}
+
+\newtheorem*{theorem*}{定理}
+\newtheorem*{definition*}{定义}
+\newtheorem*{example*}{例子}
+
+\renewcommand{\proofname}{证明}
+
+\begin{document}
+
+\title{简洁美观的幻灯片主题}
+\author{无名小卒}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+%\begin{frame}\transboxin
+%\begin{center}
+%\tableofcontents[hideallsubsections]
+%\end{center}
+%\end{frame}
+
+\section{黑色文字白色背景}
+
+\begin{frame}{简要介绍}
+\mylead{Epyt} 是一个简洁美观的 Beamer 演示主题。它有这些特点：\pause
+\begin{itemize}[<+->]
+\item 结构简洁，只有包含必需元素的底栏，没有顶栏和侧栏。
+\item 内容简洁，列表环境和定理环境可以使用简单形式。
+\item 配色简洁，仅仅用到几种背景色和前景色。
+\end{itemize}
+\end{frame}
+
+\begin{frame}{下载安装}
+\mylead{Epyt} 主题已经包含在主要的 TeX 发行版中。
+\begin{itemize}
+  \item 在 MiKTeX 中作为 \mybold{beamer-theme-epyt} 宏包。
+  \item 在 TeXLive 中作为 \mybold{epyt} 宏包。
+\end{itemize}
+你可以在包管理器中安装它。当然也可以直接从
+\href{https://www.ctan.org/pkg/epyt}{CTAN} 中下载并安装。
+\end{frame}
+
+\begin{frame}[fragile]{开始使用}
+下面的代码是使用 \mylead{epyt} 主题的最简单例子。
+\begin{lstlisting}
+\documentclass[xcolor={rgb}]{beamer}
+\usetheme{epyt}
+\end{lstlisting}\pause
+如果要使用中文，可以添加 \verb ctex 宏包，例如：
+\begin{lstlisting}
+\usepacakge[UTF8,noindent]{ctex}
+\end{lstlisting}\pause
+注意你\mywarn{必须}给 xcolor 宏包传递 rgb 参数。
+这是因为 epyt 主题总是使用 HSB 颜色模型。
+\end{frame}
+
+\begin{frame}[fragile]{样式选用}
+\mylead{Epyt} 主题中包含了多种样式，可以在载入该主题时选用。
+\begin{lstlisting}
+\usetheme[style=gamma]{epyt}
+\end{lstlisting}
+\pause 在文档中间可以用下面命令切换到另一个样式。
+\begin{lstlisting}
+\epytsetup{style=beta}
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}{可用的样式}
+\mylead{Epyt} 主题中所有可用的样式如下所列。
+\begin{description}
+  \item[alpha] 白色文字，黑色背景
+  \item[beta]  黑色文字，白色背景
+  \item[delta] 白色文字，蓝色背景
+  \item[gamma] 白色文字，绿色背景
+  \item[zeta]  白色文字，红色背景
+\end{description}
+\pause
+其中默认样式为 \mybold{beta}。这也是此文档当前正在使用的样式。
+\end{frame}
+
+\begin{frame}{预定义的颜色}
+每种样式都预先定义了五种强调颜色。当前样式的强调颜色如下所示。
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+\pause 每种样式也预先定义了五种填充颜色，如下所示。
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\pause 用 tikz 绘图时可以使用这些预先定义的颜色。
+\end{frame}
+
+\epytsetup{style=zeta}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{白色文字红色背景}
+
+\begin{frame}{预定义的颜色}
+当前样式预先定义了五种强调颜色，如下所示。
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+当前样式预先定义了五种填充颜色，如下所示。
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\epytsetup{style=gamma}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{白色文字绿色背景}
+
+\begin{frame}{预定义的颜色}
+当前样式预先定义了五种强调颜色，如下所示。
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+当前样式预先定义了五种填充颜色，如下所示。
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\begin{frame}[fragile]{有序列表}
+无序列表前面已经看到，现在来看看有序列表。一个 Beamer 的主题由下列四部分组成：\pause
+\begin{enumerate}[<+->]
+\item 外部主题，用 \verb!\usebeameroutertheme! 命令；
+\item 内部主题，用 \verb!\usebeamerinnertheme! 命令；
+\item 颜色主题，用 \verb!\usebeamercolortheme! 命令；
+\item 字体主题，用 \verb!\usebeamerfonttheme! 命令。
+\end{enumerate}
+\end{frame}
+
+\epytsetup{style=delta}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{白色文字蓝色背景}
+
+\begin{frame}{预定义的颜色}
+当前样式预先定义了五种强调颜色，如下所示。
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+当前样式预先定义了五种填充颜色，如下所示。
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\epytsetup{style=alpha}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{白色文字黑色背景}
+
+\begin{frame}{预定义的颜色}
+当前样式预先定义了五种强调颜色，如下所示。
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+当前样式预先定义了五种填充颜色，如下所示。
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\begin{frame}{例子证明}
+\begin{example}
+证明当$x>0$时不等式$\mathrm{e}^x>1+x$成立。
+\end{example}\pause
+\begin{proof}
+令$f(x)=\mathrm{e}^x-x-1$。则当$x>0$时有
+$$f'(x)=\mathrm{e}^x-1>0.$$
+因此，当$x>0$时$f(x)>f(0)=0$。得证。
+\end{proof}
+\end{frame}
+
+\end{document}
diff --git a/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.pdf b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.pdf
new file mode 100644
index 00000000000..674ee8a35e9
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.pdf
diff --git a/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.tex b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.tex
new file mode 100644
index 00000000000..dd5c8dd13b8
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/beamertheme-epyt/epyt-demo.tex
@@ -0,0 +1,251 @@
+% -*- coding: utf-8 -*-
+% !TEX program = xelatex
+\documentclass[12pt,xcolor={rgb}]{beamer}
+
+\usetheme[style=beta]{epyt} % alpha, beta, delta, gamma, zeta
+
+\usepackage{arev} % use arev sans font
+
+\setlength{\parskip}{5pt plus 1pt minus 1pt}
+
+\usepackage{listings}
+\lstset{
+  basicstyle=\ttfamily,xleftmargin=2em,
+  commentstyle=\color{teal},keywordstyle=\color{accent4},
+  language=[LaTeX]{TeX},morekeywords={usetheme,epytsetup}
+}
+
+\newcommand{\mylead}[1]{\textcolor{accent1}{#1}}
+\newcommand{\mybold}[1]{\textcolor{accent2}{#1}}
+\newcommand{\mywarn}[1]{\textcolor{accent3}{#1}}
+
+\begin{document}
+
+\title{Epyt Theme for Beamer}
+\subtitle{A simple and clean theme}
+\author{Your Name Here}
+\institute{Center for Presentation Design}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+%\begin{frame}\transboxin
+%\begin{center}
+%\tableofcontents[hideallsubsections]
+%\end{center}
+%\end{frame}
+
+\section{Black in White}
+
+\begin{frame}{Introduction}
+\mylead{Epyt} is a simple but nice theme for Beamer, with the following features: \pause
+\begin{itemize}[<+->]
+\item simple structure: with page numbers at footer, no head bar and side bar;
+\item simple templates: possible to display theorems with traditional inline style;
+\item simple colors: using only several foreground and background colors.
+\end{itemize}
+\end{frame}
+
+\begin{frame}{Getting the Theme}
+\mylead{Epyt} theme is contained in major TeX distributions.
+\begin{itemize}
+  \item In MiKTeX as \mybold{beamer-theme-epyt} package.
+  \item In TeXLive as \mybold{epyt} package.
+\end{itemize}
+You could install \mylead{epyt} in the package manager.\par\pause
+Also you could download \mylead{epyt} from \href{https://www.ctan.org/pkg/epyt}{CTAN}.
+\end{frame}
+
+\begin{frame}[fragile]{Getting Started}
+The following code is a minimal example using \mylead{epyt} theme.
+\begin{lstlisting}
+\documentclass[xcolor={rgb}]{beamer}
+\usetheme{epyt}
+\begin{document}
+  \begin{frame}{Hello}
+    Hello Beamer!
+  \end{frame}
+\end{document}
+\end{lstlisting}
+\pause
+Note that you \mywarn{should} pass rgb option to xcolor package,
+since epyt theme always uses HSB colors.
+\end{frame}
+
+\begin{frame}[fragile]{Customization}
+\mylead{Epyt} theme provides a number of styles, which can be set in loading the theme.
+\begin{lstlisting}
+\usetheme[style=gamma]{epyt}
+\end{lstlisting}
+\pause The style could also be changed in the middle of the presentation.
+\begin{lstlisting}
+\epytsetup{style=beta}
+\end{lstlisting}
+\end{frame}
+
+\begin{frame}{Available Styles}
+All available styles are listed here.
+\begin{description}
+  \item[alpha] white text in black background
+  \item[beta]  black text in white background
+  \item[delta] white text in blue background
+  \item[gamma] white text in green background
+  \item[zeta]  white text in red background
+\end{description}
+\pause
+And the default style is \mybold{beta}, which is what you see up to now in this presentation.
+\end{frame}
+
+\begin{frame}{Predefined Colors}
+For each style, five accent colors are predefined.
+With current style, they are the followings.
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+\pause Also five filler colors are predefined for each style.
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\pause These colors are useful when you are drawing a tikz picture.
+\end{frame}
+
+\epytsetup{style=gamma}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{White in Green}
+
+\begin{frame}{Predefined Colors}
+Five accent colors are predefined for this style.
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+Also five filler colors are predefined for this style.
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\begin{frame}[fragile]{Ordered Lists}
+A Beamer theme consists of the following four parts: \pause
+\begin{enumerate}[<+->]
+\item outer theme, with \verb!\usebeameroutertheme!;
+\item inner theme, with \verb!\usebeamerinnertheme!;
+\item color theme, with \verb!\usebeamercolortheme!;
+\item font theme, with \verb!\usebeamerfonttheme!.
+\end{enumerate}
+\end{frame}
+
+\epytsetup{style=delta}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{White in Blue}
+
+\begin{frame}{Predefined Colors}
+Five accent colors are predefined for this style.
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+Also five filler colors are predefined for this style.
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\begin{frame}{Example}
+\begin{example}
+Prove the following result:
+\[ \lim_{x\to0}\frac{\sin 3x}{\ln(1-2x)}=-\frac{3}{2} \]
+\end{example}\pause
+\begin{proof}
+Since $\sin 3x \sim 3x$ and $\ln(1-2x) \sim -2x$, we have
+\[ \lim_{x\to0}\frac{\sin 3x}{\ln(1-2x)}=\lim_{x\to0}\frac{3x}{-2x}=-\frac{3}{2}, \]
+and we are done.
+\end{proof}
+\end{frame}
+
+\epytsetup{style=alpha}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{White in Black}
+
+\begin{frame}{Predefined Colors}
+Five accent colors are predefined for this style.
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+Also five filler colors are predefined for this style.
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\epytsetup{style=zeta}
+
+\begin{frame}[plain]\transboxout
+\titlepage
+\end{frame}
+
+\section{White in Red}
+
+\begin{frame}{Predefined Colors}
+Five accent colors are predefined for this style.
+\begin{flushleft}
+\textcolor{accent1}{accent1}
+\textcolor{accent2}{accent2}
+\textcolor{accent3}{accent3}
+\textcolor{accent4}{accent4}
+\textcolor{accent5}{accent5}
+\end{flushleft}
+Also five filler colors are predefined for this style.
+\begin{flushleft}
+\colorbox{filler1}{filler1}
+\colorbox{filler2}{filler2}
+\colorbox{filler3}{filler3}
+\colorbox{filler4}{filler4}
+\colorbox{filler5}{filler5}
+\end{flushleft}
+\end{frame}
+
+\end{document}