\documentclass[twoside,openany,12pt]{beautynote} 
% Input Some Information of the doc
\doctitle{Introduction to Beautynote Template}
\docsubtitle{A subtitle}
\dockeywords{beautynote,introduction}
\date{\today\vfill\includegraphics[width=0.15\textwidth]{titlepage.png}\\[.1em] \textsc{\large Beautynote}}
% Hyperref always required second to last.
\RequirePackage{hyperref}
\makeatletter
\hypersetup{%
    % hidelinks,
    pdfstartview=Fit,%
    pdfmenubar=true,%
    pdftoolbar=true,%
    bookmarksopen=false,%
    colorlinks=true,
    linkcolor=black,
    citecolor=purple,
    pdftitle={\@docsubtitle},%
    pdfauthor={\@author},%
    pdfsubject={\@doctitle},%
    pdflang={\languagename},%
    pdfkeywords={\@dockeywords},%
    pdfproducer={pdfTeX}}
\makeatother

% Cleveref as the last one.
\RequirePackage{cleveref}
%%%%%%%%%%%%%%%%%
\author{Ethan Lu}
\footext{}
\copyrightpage%
{Faculty of Pure Mathematics}% Your Faculty
{XX University}% Your University
{Press of XX University}% Your Publisher
{01A75, 00B50}% AMS
{Guang Zhou}% Your City
% If you do not want to fill one of the fields, please leave it like this: {}
\usepackage{microtype}
\usepackage{appendix}
\usepackage{mathrsfs}
\usepackage{bropd}
\usepackage{bm}
\usepackage{tabularray,booktabs}
\usepackage{listings}
\lstset{
    basicstyle=\small\ttfamily,	
        keywordstyle=\color{NavyBlue}, 
        commentstyle=\color{gray!50!black!50},   	
        stringstyle=\rmfamily\slshape\color{red}, 	
    backgroundcolor=\color{gray!5},     
    frame=leftline,						
    framerule=0.5pt,rulecolor=\color{gray!80}, 
    numbers=left,				
        numberstyle=\footnotesize,	
        firstnumber=1,
        stepnumber=1,                  	
        numbersep=7pt,               	
    aboveskip=.25em, 			
    showspaces=false,               	
    showstringspaces=false,        
    keepspaces=true, 					
    showtabs=false,                 	
    tabsize=2,                     		
    captionpos=b,                   	
    flexiblecolumns=true, 			
    breaklines=true,                	
    breakatwhitespace=false,        	
    breakautoindent=true,			
    breakindent=1em, 			
    title=\lstname,				
    escapeinside=``,  		
    xleftmargin=1em,  xrightmargin=1em,     
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    framextopmargin=1pt, framexbottommargin=1pt,
        abovecaptionskip=-2pt,belowcaptionskip=3pt,
    extendedchars=false, columns=flexible, mathescape=true,
    texcl=true,
    fontadjust
}%
\begin{document}
% Titlepage
\maketitle\clearpage
%%%%%%%%%%%%%%%% Copyright-Page %%%%%%%%%%%%%%%%%%%%%%%
\copyrights
\pagestyle{\auxsettings}
\makeatletter
\thispagestyle{copyright}
\ifdefempty{\@faculty}{}{\noindent{\large\textsc{\@faculty}} \\}
\ifdefempty{\@university}{}{{\large\textsc{\@university}} \\[1em]}
\ifdefempty{\@publisher}{}{\textit{Published by:} \@publisher \\}
\ifthenelse{\boolean{copyright}}{\textit{Copyright by:} \textsc{\docauthor }\\}{} 
\ifdefempty{\@ams}{}{\textit{AMS Classification (2020):} \@ams.\\}
\vfill
\ifdefempty{\@city}{}{\noindent\@city, on \today\\}
\copyright\,\the\year\, \textsc{The Authors}
\doclicenseThis
\cleardoublepage
\makeatother
%%%%%%%%%%%%%%%% Copyright-Page %%%%%%%%%%%%%%%%%%%%%%%
% Toc
    \tableofcontents
% Main Contents
\pagestyle{\defaultsettings}
\chapter{A short introduction to beautynote template}
\section{Introduction}

Beautynote is a specially designed to meet the publication of books and the production of latex templates, with elegant chapter styles and unique page styles.

Here are all the things you can change : 
\begin{table}[!htbp]
    \centering % 使用 \centering 替代 center 环境
    \caption{Information-needed}
    \begin{tabular}{c|c}
        \toprule
        \lstinline|\docauthor| & The author of this note\\ \midrule
        \lstinline|\doctitle| & The title of this note\\ \midrule
        \lstinline|\docsubtitle| & The subtitle of this note\\ \midrule
        \lstinline|\docdate| & The date of this note\\ \midrule
        \lstinline|\dockeywords| & The keywords of this note\\ \midrule % 假设这是正确的宏命令
        \lstinline|\copyrightpage| & Some useful information of the copyright of this note, just like page 2\\
        \bottomrule
    \end{tabular}
    \label{tb:Information-needed}
\end{table}
\textbf{Notation:} If you want to change the picture in title page, you can find it on the 220th line in the file \lstinline{beautynote.cls}.
\section{Environments}
We can use some important theorem environments:
\begin{theorem}[Theorem]\label{thm:example-1}
    Example of theorem environment.
\end{theorem}
\begin{proof}
    
\end{proof}
    
\begin{lemma}[Lemma]\label{thm:example-2}
    Example of theorem environment.
\end{lemma}
\begin{solution}
    
\end{solution}
    
\begin{definition}[Definition]\label{thm:example-3}
    Example of theorem environment.
\end{definition}
\begin{proposition}[Proposition]\label{thm:example-4}
    Example of theorem environment.
\end{proposition}
\begin{problem}[Problem]\label{thm:example-5}
    Example of theorem environment.
\end{problem}
\begin{remark}[Remark]
    Example of theorem environment.
\end{remark}

% Bibliography
\clearpage
\pagestyle{\auxsettings}
% \printbibliography[heading=bibintoc]
\end{document}