关于底纹颜色和大小的一个问题

\documentclass{ctexart}
\usepackage{zhlipsum}
\usepackage{niceframe}
\usepackage{dingbat}
\usepackage{bbding}
\usepackage{tikz}
\usepackage[margin=2cm]{geometry}

\makeatletter
\newlength\this@pgf@bop@width
\newlength\this@pgf@bop@height
\def\this@pgf@bop@color{black}
\def\this@pgf@bop@opacity{1}
\def\this@pgf@bop@xscale{1}
\def\this@pgf@bop@yscale{1}
\ExplSyntaxOn
\cs_new_protected:Npn \this@pgf@bop@setscale #1
  {
    \box_scale:cnn { this@pgf@box@pattern #1 }
      { \this@pgf@bop@xscale } { \this@pgf@bop@yscale }
    \tl_set:cx { this@pgf@bop@#1@width } { \box_wd:c { this@pgf@box@pattern#1 } }
    \tl_set:cx { this@pgf@bop@#1@height } { \box_ht_plus_dp:c { this@pgf@box@pattern#1 } }
  }
\ExplSyntaxOff

\def\setboxaspattern#1#2{\expandafter\newbox\csname this@pgf@box@pattern#1\endcsname
  \expandafter\setbox\csname this@pgf@box@pattern#1\endcsname\hbox{#2}%
  \expandafter\edef\csname this@pgf@bop@#1@width\endcsname{\the\wd\csname this@pgf@box@pattern#1\endcsname}%
  \expandafter\edef\csname this@pgf@bop@#1@height\endcsname{\the\dimexpr\ht\csname this@pgf@box@pattern#1\endcsname+\dp\csname this@pgf@box@pattern#1\endcsname}%
}
\tikzset{
  box pattern xscale/.code={\def\this@pgf@bop@xscale{#1}},
  box pattern yscale/.code={\def\this@pgf@bop@yscale{#1}},
  box pattern scale/.code={\def\this@pgf@bop@xscale{#1}\def\this@pgf@bop@yscale{#1}},
  box pattern color/.code={\def\this@pgf@bop@color{#1}},
  box pattern opacity/.code={\def\this@pgf@bop@opacity{#1}},
  box as pattern/.code 2 args={%
    \this@pgf@bop@setscale{#2}%
    \expandafter\this@pgf@bop@width\csname this@pgf@bop@#2@width\endcsname
    \expandafter\this@pgf@bop@height\csname this@pgf@bop@#2@height\endcsname
    \pgfkeysalso{/tikz/path picture={%
      \pgf@process{\pgfpointanchor{path picture bounding box}{north east}}%
      \pgf@xa\pgf@x \pgf@ya\pgf@y
      \pgf@process{\pgfpointanchor{path picture bounding box}{south west}}%
      \pgf@xb\pgf@x \pgf@yb\pgf@y \pgf@yc\pgf@yb
      \pgfutil@loop
        {%
        \pgfutil@loop
          \expandafter\pgftext\expandafter[#1,at=\pgfqpoint{\pgf@xb}{\pgf@yb}]{%
            \pgfsetfillcolor{\this@pgf@bop@color}%
            \pgfsetfillopacity{\this@pgf@bop@opacity}%
            \copy\csname this@pgf@box@pattern#2\endcsname}%
          \ifdim\pgf@yb<\pgf@ya
          \advance\pgf@yb\this@pgf@bop@height
        \pgfutil@repeat
        }%
        \ifdim\pgf@xb<\pgf@xa
        \advance\pgf@xb\this@pgf@bop@width
        \pgf@yb\pgf@yc
      \pgfutil@repeat
    }}%
  }
}
\makeatother

\setboxaspattern{hua}{\FourClowerOpen}

\usepackage[many]{tcolorbox}
\usetikzlibrary{decorations,decorations.markings}
\begin{document}
\font\border=karta15
\generalframe
 {\border\char'307}{\border\char'324}{\border\char'322}
 {\border\char'310} {\border\char'323}
 {\border\char'174}{\border\char'325}{\border\char'175}
 {\noindent\tikz\node[box pattern opacity=0.4, box as pattern={}{hua}]
   {\parbox{\dimexpr\textwidth-40pt-4\fboxsep}{\parindent=2\ccwd \zhlipsum[1][name=zhufu]}};}

{\setlength\fboxsep{0pt}
\generalframe
 {\border\char'307}{\border\char'324}{\border\char'322}
 {\border\char'310} {\border\char'323}
 {\border\char'174}{\border\char'325}{\border\char'175}
 {\parindent=0pt
   \begin{tcolorbox}[width=\textwidth-3.28em-4\fboxsep,left=2mm,right=2mm,enhanced,nobeforeafter,
     frame empty,
     interior code={\path[draw=white,fill=white,box pattern opacity=0.3, box as pattern={}{hua}]
     (interior.south west) rectangle (interior.north east);},
  ]
    \parindent=2\ccwd
    \zhlipsum[1][name=zhufu]
  \end{tcolorbox}}}

\makeatletter
\tcbset{arrow frame decoration/.style={
  frame empty,
  before skip=1em plus 5pt, after skip=1em plus 5pt,
     overlay={%
       \draw[decorate,decoration={
         markings, mark=between positions 0.07 and 0.97 step 1.2em with
           {\pgftext{\border\char'325}}}](frame.north west)--(frame.south west);
       \draw[decorate,decoration={
         markings, mark=between positions 0.07 and 0.97 step 1.2em with
           {\pgftext{\border\char'324}}}](frame.north east)--(frame.south east);
       \draw[decorate,decoration={
         markings, mark=between positions 0.03 and 0.97 step {\dimexpr\kvtcb@width/(\numexpr\linewidth/\dimexpr1.5em\relax)} with 
           {\pgftext{\border\char'324}}}](frame.north west)--(frame.north east);
       \draw[decorate,decoration={
         markings, mark=between positions 0.03 and 0.97 step {\dimexpr\kvtcb@width/(\numexpr\linewidth/\dimexpr1.5em\relax)} with 
           {\pgftext{\border\char'325}}}](frame.south west)--(frame.south east);
       \path node at([yshift=-.2ex]frame.south west) {\border\char'174}
             node at([yshift=-.2ex]frame.south east) {\border\char'175}
             node at([yshift=-.2ex]frame.north west) {\border\char'307}
             node at([yshift=-.2ex]frame.north east) {\border\char'322};
     },
},}
\makeatother

\newtcolorbox{arrowframe}[2][]{left=2mm,right=2mm,enhanced,arrow frame decoration,
     interior code={\path[draw=white,fill=white,
       box pattern opacity=.5,box pattern color=red,box pattern scale=1.5,
       box as pattern={}{#2}]
       ([xshift=1ex,yshift=1ex]interior.south west) rectangle
       ([xshift=-1ex,yshift=-1ex]interior.north east);},#1}

\begin{arrowframe}{hua}
    \parindent=2\ccwd
    \zhlipsum[1]
\end{arrowframe}

\end{document}