header.tex

%
% put gray background around verbatim text
%
% Reference
% <https://tex.stackexchange.com/questions/411194/package-soul-error-reconstruction-failed>

%\PassOptionsToPackage{table}{xcolor}
%\PassOptionsToPackage{dvipscolor}{xcolor}
\usepackage[table,dvipscolor,usenames]{xcolor}
\usepackage{soul}

\definecolor{inlineBG}{HTML}{F3F3F3}  % same as GitHub Flavored Markdown
\sethlcolor{inlineBG}

\let\OldTexttt\texttt
\renewcommand{\texttt}[1]{\sethlcolor{inlineBG}{\ttfamily\hl{\mbox{#1}}}}

%
% configure lstlisting package
%
  \lstset{ 
  backgroundcolor=\color{gray!10},   % choose the background color; you must add \usepackage{color} or \usepackage{xcolor}; should come as last argument
  basicstyle=\normalsize,        % the size of the fonts that are used for the code
  breakatwhitespace=false,         % sets if automatic breaks should only happen at whitespace
  breaklines=true,                 % sets automatic line breaking
  captionpos=b,                    % sets the caption-position to bottom
  commentstyle=\color{mygreen},    % comment style
  deletekeywords={source},         % if you want to delete keywords from the given language
  escapeinside={\%*}{*)},          % if you want to add LaTeX within your code
  emph={git,curl},
  emphstyle={\color{blue}},
  extendedchars=true,              % lets you use non-ASCII characters; for 8-bits encodings only, does not work with UTF-8
  firstnumber=1000,                % start line enumeration with line 1000
  frame=shadowbox,	                   % adds a frame around the code
  frameround=tttt,
  rulesepcolor=\color{gray},
  columns=flexible,
  keepspaces=true,                 % keeps spaces in text, useful for keeping indentation of code (possibly needs columns=flexible)
  keywordstyle=\color{blue},       % keyword style
  language=bash,                   % the language of the code
  morekeywords={git,curl}          % if you want to add more keywords to the set
  numbers=left,                    % where to put the line-numbers; possible values are (none, left, right)
  numbersep=5pt,                   % how far the line-numbers are from the code
  numberstyle=\tiny\color{gray}, % the style that is used for the line-numbers
  rulecolor=\color{black},         % if not set, the frame-color may be changed on line-breaks within not-black text (e.g. comments (green here))
  showspaces=false,                % show spaces everywhere adding particular underscores; it overrides 'showstringspaces'
  showstringspaces=false,          % underline spaces within strings only
  showtabs=false,                  % show tabs within strings adding particular underscores
  stepnumber=2,                    % the step between two line-numbers. If it's 1, each line will be numbered
  stringstyle=\color{cyan},     % string literal style
  tabsize=2,	                   % sets default tabsize to 2 spaces
}

%
% from: https://tex.stackexchange.com/questions/30845/how-to-redefine-lstinline-to-automatically-highlight-or-draw-frames-around-all
%

\usepackage{etoolbox}
\usepackage{atbegshi,ifthen,listings,tikz}

% change this to customize the appearance of the highlight
\tikzstyle{highlighter} = [
  inlineBG,
  line width = \baselineskip,
]

% enable these two lines for a more human-looking highlight
%\usetikzlibrary{decorations.pathmorphing}
%\tikzstyle{highlighter} += [decorate, decoration = random steps]

% implementation of the core highlighting logic; do not change!
\newcounter{highlight}[page]
\newcommand{\tikzhighlightanchor}[1]{\ensuremath{\vcenter{\hbox{\tikz[remember picture, overlay]{\coordinate (#1 highlight \arabic{highlight});}}}}}
\newcommand{\bh}[0]{\stepcounter{highlight}\tikzhighlightanchor{begin}}
\newcommand{\eh}[0]{\tikzhighlightanchor{end}}
\AtBeginShipout{\AtBeginShipoutUpperLeft{\ifthenelse{\value{highlight} > 0}{\tikz[remember picture, overlay]{\foreach \stroke in {1,...,\arabic{highlight}} \draw[highlighter] (begin highlight \stroke) -- (end highlight \stroke);}}{}}}
%--------------------------


\makeatletter %   Redefine macros from listings package:
\newtoggle{@InInlineListing}%
\togglefalse{@InInlineListing}%

\renewcommand\lstinline[1][]{%
    \leavevmode\bgroup\toggletrue{@InInlineListing}\bh % \hbox\bgroup --> \bgroup
      \def\lst@boxpos{b}%
      \lsthk@PreSet\lstset{flexiblecolumns,#1}%
      \lsthk@TextStyle
      \@ifnextchar\bgroup{\afterassignment\lst@InlineG \let\@let@token}%
                         \lstinline@}%

\def\lst@LeaveAllModes{%
    \ifnum\lst@mode=\lst@nomode
        \expandafter\lsthk@EndGroup\iftoggle{@InInlineListing}{\eh{}}{}%
    \else
        \expandafter\egroup\expandafter\lst@LeaveAllModes
    \fi%
    }
\makeatother

%
% Create nice section headers using tikz and titlesec
%

\usepackage[explicit]{titlesec}

\titleformat{\section}
  {\gdef\sectionlabel{}
   \normalfont\sffamily\Large\bfseries\scshape}
  {\gdef\sectionlabel{\thesection)\ }}{0pt}
  {   \begin{tikzpicture}%[remember picture, overlay]
        \node[rectangle,
              rounded corners=14pt,inner sep=8pt,
              fill=red!90]
              {\color{white}~~\sectionlabel#1~~};
       \end{tikzpicture}
  }
\titlespacing*{\section}{-20pt}{30pt}{30pt}

\titleformat{\subsection}
  {\gdef\subsectionlabel{}
   \normalfont\sffamily\large\bfseries\scshape}
  {\gdef\subsectionlabel{\thesubsection)\ }}{0pt}
  {   \begin{tikzpicture}%[remember picture, overlay]
        \node[rectangle,
              rounded corners=10pt,inner sep=4pt,
              fill=red!90]
              {\color{white}~~\subsectionlabel#1~~};
       \end{tikzpicture}
  }
\titlespacing*{\subsection}{-10pt}{10pt}{10pt}

\titleformat{\subsubsection}
  {\gdef\subsubsectionlabel{}
   \normalfont\sffamily\bfseries\scshape}
  {\gdef\subsubsectionlabel{\thesubsubsection)\ }}{0pt}
  {   \begin{tikzpicture}%[remember picture, overlay]
        \node[rectangle,
              rounded corners=8pt,inner sep=4pt,
              fill=red!90]
              {\color{white}~~\subsubsectionlabel#1~~};
       \end{tikzpicture}
  }
\titlespacing*{\subsubsection}{0pt}{10pt}{8pt}
    %% pandoc-tablenos: required package
    \usepackage{caption}

    %% pandoc-tablenos: environment to disable table caption prefixes
    \makeatletter
    \newcounter{tableno}
    \newenvironment{tablenos:no-prefix-table-caption}{
      \caption@ifcompatibility{}{
        \let\oldthetable\thetable
        \let\oldtheHtable\theHtable
        \renewcommand{\thetable}{tableno:\thetableno}
        \renewcommand{\theHtable}{tableno:\thetableno}
        \stepcounter{tableno}
        \captionsetup{labelformat=empty}
      }
    }{
      \caption@ifcompatibility{}{
        \captionsetup{labelformat=default}
        \let\thetable\oldthetable
        \let\theHtable\oldtheHtable
        \addtocounter{table}{-1}
      }
    }
    \makeatother