a template to export from org-mode to latex

tufte-book.tex

\usepackage[scaled=0.95]{roboto}
\usepackage{mathpazo}
\linespread{1.05}
\usepackage{eulervm}
\usepackage[usenames]{xcolor}

%% footnote color
\renewcommand{\thefootnote}{\textcolor{Gray}{\arabic{footnote}}}
\makeatletter

%%
%% chapter number style
%%

\usepackage{titlesec}
\definecolor{gray75}{gray}{0.75}
\newcommand{\hsp}{\hspace{0pt}}
\titleformat{\chapter}[hang]{\flushright
\fontseries{b}\fontsize{60}{80}\selectfont}{\fontseries{b}\fontsize{80}{110}\selectfont
\textcolor{gray75}\thechapter\hsp}{0pt}{\\
\Huge\bfseries}[]

% \renewcommand{\chapterNumber}{%
%  \fontsize{70}{70}\usefont{\encodingdefault}{\sfdefault}{b}{n}}

\renewcommand\@footnotetext[2][0pt]{%
  \marginpar{%
    \hbox{}\vspace*{#1}%
    \def\baselinestretch {\setspace@singlespace}%
    \reset@font\footnotesize%
    \@tufte@margin@par% use parindent and parskip settings for marginal text
    \vspace*{-1\baselineskip}\noindent%
    \protected@edef\@currentlabel{%
       \csname p@footnote\endcsname\@thefnmark%
    }%
    \color{Gray}
    % \sffamily 
    \color@begingroup%
       \@makefntext{%
         \ignorespaces#2%
       }%
    \color@endgroup%
  }%
}%

\makeatother

%%==============================================================================
%%                                 SECTIONS
%%==============================================================================
%% section numbering to subsection
\setcounter{secnumdepth}{3}
\renewcommand{\thesection}{\Roman{section}}
\renewcommand{\thesubsection}{\thesection.\Alph{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection\arabic{subsubsection})}
\renewcommand{\theparagraph}{\roman{paragraph}}
 
%%==============================================================================
%%                                 COLORS
%%==============================================================================
%% section format
\titleformat{\section}%
  {\normalfont\Large\itshape\color{Cerulean}}% format applied to label+text
  {\llap{\colorbox{Cerulean}{\parbox{1.5cm}{\hfill\color{white}\thesection}}}}% label
  {1em}% horizontal separation between label and title body
  {}% before the title body
  []% after the title body

% subsection format
\titleformat{\subsection}%
  {\normalfont\large\itshape\color{TealBlue}}% format applied to label+text
  {\llap{\colorbox{TealBlue}{\parbox{1.5cm}{\hfill\color{white}\thesubsection}}}}% label
  {1em}% horizontal separation between label and title body
  {}% before the title body
  []% after the title body

\renewcommand{\footnotesize}{\scriptsize}
\setcaptionfont{\color{SeaGreen}\footnotesize}
\setsidenotefont{\color{Gray}\sffamily\footnotesize}
\setmarginnotefont{\color{SeaGreen}\itshape\footnotesize}

Is the trailing double quote at the end of line 80 intentional? I don't think it's supposed to be there.
You're right, don't know how it ended it up there ...
Thanks!