Hypertex 选项和边框

Question

使用 AlexG 的答案这个帖子，我有以下示例代码（example.tex），必须使用

latex example
latex example
dvisvgm --font-format=woff2 --bbox=papersize --zoom=-1 -p1,- --output=%f-%1p example

example.tex 文件：

\documentclass[dvisvgm,hypertex,aspectratio=169]{beamer}
\usefonttheme{serif}

\usepackage{animate}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% PageDown, PageUp key event handling; navigation symbols
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage[totpages]{zref}
\usepackage{atbegshi}
\usepackage{fontawesome}
\setbeamertemplate{navigation symbols}{}
\AtBeginShipout{%
  \AtBeginShipoutAddToBox{%
    \special{dvisvgm:raw
      <defs>
      <script type="text/javascript">
      <![CDATA[
        document.addEventListener('keydown', function(e){
          if(e.key=='PageDown'){
            \ifnum\thepage<\ztotpages
              document.location.replace('\jobname-\the\numexpr\thepage+1\relax.svg');%
            \fi
          }else if(e.key=='PageUp'){
            \ifnum\thepage>1
              document.location.replace('\jobname-\the\numexpr\thepage-1\relax.svg');%
            \fi%
          }
        });
      ]]>
      </script>
      </defs>
    }%
  }%
  \AtBeginShipoutUpperLeftForeground{%
    \raisebox{-\dimexpr\height+0.5ex\relax}[0pt][0pt]{\makebox[\paperwidth][r]{%
      \normalsize\color{structure!40!}%
      \ifnum\thepage>1%
        \href{\jobname-\the\numexpr\thepage-1\relax.svg}{\faArrowLeft}%
      \else%  
        \textcolor{lightgray}{\faArrowLeft}%  
      \fi\hspace{0.5ex}%
      \ifnum\thepage<\ztotpages%
        \href{\jobname-\the\numexpr\thepage+1\relax.svg}{\faArrowRight}%
      \else%
        \textcolor{lightgray}{\faArrowRight}%  
      \fi%
      \hspace{0.5ex}%
    }}%
  }%  
}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\title{Using package \emph{animate} without Adobe}
\subtitle{Use a Web browser and press \framebox{F11}}
\author{AlexG}
\date{\today}

\AtBeginSection[]{
  \begin{frame}
\frametitle{Sommaire}
 \tableofcontents[currentsection,hideothersubsections]
  \end{frame} 
}

\begin{document}

\frame{\titlepage}

\section{First section}

\begin{frame}{Animation}
  trivial example
  \begin{center}
    \begin{animateinline}[controls]{2}
      \multiframe{10}{i=0+1}{\Huge\fbox{\i}}
    \end{animateinline}  
  \end{center}
\end{frame}


\begin{frame}
  \begin{center}\Huge The End\end{center}  
\end{frame}

\end{document}

这将生成一个 svg 文档列表，然后可以在浏览器中使用（顺便说一句，AlexG 的回答很棒，谢谢！）。现在，似乎 hypertex 选项（需要在每个幻灯片上生成导航符号）为文档中的每个超文本行添加了边框（这是文档第二张幻灯片中的“第一部分”的情况）。有没有办法去掉边框但保留导航符号？这意味着只有箭头，没有它们的边框。