Memoir Class - Modify `ell` chapter style

Question

In the memoir class, how can I modify the format for the ell chapter style. In the manual, the code is not listed (unlike the other styles).

Basically in the above, all I want to do is make the horizontal and vertical line a little thicker and of a different colour.

I have been through the source code of the memoir package, but cannot find where the code is for this particular chapter style.

Answer 1

This is how I ended up modifying it, the \chs@ell@helper command needed redefining:

%Modify the fancy chapter lines.
\makeatletter
    \usepackage{array}
    \newcolumntype{?}{!{\verticalrule}}
    \renewcommand\chs@ell@helper[1]{%
      \par%
        \begin{adjustwidth}{}{-\chapindent}
          \begin{tabularx}{\linewidth}{>{\raggedleft\arraybackslash}X?}%|emacs
            \leavevmode\chapnumfont #1\vphantom{1}%
            \hspace*{3.6pt}%
            \color{blue!50!black}\rule[-13.5pt]{0pt}{14.8mm}%
            \\%
            \midrule %\hline%
          \end{tabularx}%
        \end{adjustwidth}%
        \par%
      }%
\makeatother