ryan.sty

% Font
\usepackage{tgpagella} % text only
\usepackage{mathpazo}  % math & text

%Colour
\usepackage[dvipsnames]{xcolor}
\usepackage{soul,xcolor}
\definecolor{darkblue}{rgb}{0.0, 0.0, 0.65}

\usepackage{amsmath,amssymb}
\usepackage[integrals]{wasysym}
%Define some macros
\newcommand{\cbrt}[1]{\sqrt[3]{#1}}
\newcommand{\floor}[1]{\left\lfloor #1 \right\rfloor}
\newcommand{\ceiling}[1]{\left\lceil #1 \right\rceil}
\newcommand{\mailto}[1]{\href{mailto:#1}{\texttt{#1}}}
\newcommand{\brac}[1]{\left(#1\right)}
\newcommand{\sqbrac}[1]{\left[#1\right]}
\newcommand{\absolute}[1]{\left|#1\right|}
\newcommand{\crbrac}[1]{\left\{#1\right\}}
\providecommand{\arc}[1]{\wideparen{#1}}
\newcommand{\vocab}[1]{{\sffamily\color{darkblue}\bfseries #1}}
\renewcommand{\epsilon}{\varepsilon}
\newcommand{\unit}[1]{\,\mathrm{#1}}
\newcommand{\degC}{^\circ{\mathrm C}}
\newcommand{\tab}{\hspace{0.5cm}}
\newcommand{\per}[2]{^{#1}\mathrm{P}_{#2}}
\newcommand{\com}[2]{^{#1}\mathrm{C}_{#2}}
\newcommand{\leg}[2]{\brac{\dfrac{#1}{#2}}}

%More commands and math operators
\DeclareMathOperator{\cis}{cis}
\DeclareMathOperator*{\lcm}{lcm}
\DeclareMathOperator*{\argmin}{arg min}
\DeclareMathOperator*{\argmax}{arg max}
\DeclareMathOperator{\diam}{diam}
\DeclareMathOperator{\cosec}{cosec}
\DeclareMathOperator{\Exp}{E}
\DeclareMathOperator{\Var}{Var}
\DeclareMathOperator{\Po}{Po}
\DeclareMathOperator{\dom}{dom}
\DeclareMathOperator{\ran}{ran}
\DeclareMathOperator{\cs}{cis}
\newcommand{\suchthat}{\text{ s.t. }}
\DeclareMathOperator{\arsinh}{arsinh}
\DeclareMathOperator{\arcosh}{arcosh}
\DeclareMathOperator{\artanh}{artanh}
\DeclareMathOperator{\cosech}{cosech}
\DeclareMathOperator{\spn}{span}
\DeclareMathOperator{\im}{im}
\DeclareMathOperator{\id}{id}
\DeclareMathOperator{\ch}{ch}
\DeclareMathOperator{\Sym}{Sym}
\DeclareMathOperator{\Aut}{Aut}
\DeclareMathOperator{\Ann}{Ann}
\renewcommand{\le}{\leqslant}
\renewcommand{\ge}{\geqslant}

%Inequalities
\newcommand{\cycsum}{\sum_{\mathrm{cyc}}}
\newcommand{\symsum}{\sum_{\mathrm{sym}}}
\newcommand{\cycprod}{\prod_{\mathrm{cyc}}}
\newcommand{\symprod}{\prod_{\mathrm{sym}}}

%Convenient Environments
\usepackage{amsthm}
%\renewenvironment{proof}{{\bfseries Proof. }}{\qed}
\newenvironment{solution}{\begin{proof}[Solution]}{\end{proof}}
%\newenvironment{solution}{{\bfseries Solution. } }{\qed}
%\newenvironment{notation}{{\bfseries Notation. }}{}
%\newenvironment{derivation}{{\bfseries Derivation. }}{\qed}

\theoremstyle{remark}
\newtheorem*{remark}{Remark}
\newtheorem*{notation}{Notation}

%Letters
\newcommand{\BB}{\mathbf B}
\newcommand{\CC}{\mathbf C}
\newcommand{\DD}{\mathbf D}
\newcommand{\EE}{\mathbf E}
\newcommand{\FF}{\mathbf F}
\newcommand{\KK}{\mathbf K}
\newcommand{\NN}{\mathbf N}
\newcommand{\PP}{\mathbf P}
\newcommand{\QQ}{\mathbf Q}
\newcommand{\RR}{\mathbf R}
\newcommand{\SSS}{\mathbf S}
\newcommand{\ZZ}{\mathbf Z}

%Asymptote setup
\usepackage{asymptote}

%Generic symbols for both text and math mode
%Provides generic commands \degree, \celsius, \perthousand, \micro and \ohm which work both in text and maths mode.
\usepackage{gensymb}

% Fonts and math symbols
\usepackage{lmodern,amsfonts,mathrsfs,mathtools,changepage,centernot}

% Advanced positioning
\usepackage{xcoffins,calc}

%Ragged boxes
\usepackage[raggedrightboxes]{ragged2e}

%Strikeout text
\usepackage{cancel}

% Pictures and images
\usepackage{graphicx,float}
\graphicspath{ {./images/} }
\usepackage{tikz,pstricks} 
\usetikzlibrary{calc,intersections,through,backgrounds,positioning}
\usepackage{titlepic}

\usetikzlibrary{shapes.geometric, arrows}
%\usepackage[siunitx]{circuitikz}

% Code environment
\usepackage{listings}
\lstset{
basicstyle=\small\ttfamily,
columns=flexible,
breaklines=true
}

\definecolor{backcolour}{rgb}{0.95,0.95,0.92}

\lstdefinestyle{mystyle}{
    backgroundcolor=\color{backcolour},
    basicstyle=\ttfamily\footnotesize,
    breakatwhitespace=false,         
    breaklines=true,                 
    captionpos=b,                    
    keepspaces=true,
    showspaces=false,                
    showstringspaces=false,
    showtabs=false,                  
    tabsize=2
}

\lstset{style=mystyle}


% Side captions
\usepackage[rightcaption]{sidecap}

% Wrap figures
\usepackage{wrapfig}

%\usepackage{MnSymbol} % Additional symbols

% Customise lists (such as itemize, enumerate, description)
\usepackage{enumerate}
\usepackage{enumitem}

% Create colored boxes for theorems, examples, etc.
\usepackage[most,listings]{tcolorbox}


\usepackage{hyperref} % Hyperlink setup
\hypersetup{
    colorlinks,
    citecolor=darkblue,
    filecolor=black,
    linkcolor=darkblue,
    urlcolor=darkblue,
}

% Cross referencing
\usepackage{varioref}
\usepackage[capitalise]{cleveref}
\usepackage{nameref}

\usepackage{setspace}
\usepackage{array,tabularray,multirow,multicol,longtable,booktabs} % Tables


\usepackage{physics} % Physics symbols and notation
\usepackage{derivative} % Derivative notation
\usepackage{ifthen} % Conditional statements

% Plotting graphs
\usepackage{pgfplots}

% Formatting derivatives
\usepackage{commath}

% Formatting code
\usepackage{fancyvrb} %\Verbatim[numbers=left,frame=single,formatcom=\color{red}] - this is used to print code

% Page numbering
\usepackage{lastpage}

% Tools for writing packages
\usepackage{etoolbox}


\usepackage[bottom]{footmisc} % Bottom footnotes


\usepackage[acronym]{glossaries} % Acronyms


\usepackage{pdfpages} % Include PDF pages

\usepackage[colorinlistoftodos]{todonotes} % Create todo notes
\usepackage{comment}
\usepackage{version}
\usepackage{imakeidx} % Index

\usepackage{chemfig} % Chemistry
\usepackage[version=4]{mhchem} % Chemistry
\usepackage{plimsoll} % Chemistry



\usepackage{thmtools}
\usepackage[framemethod=TikZ]{mdframed}
\usetikzlibrary{shadows}

\mdfdefinestyle{mdbluebox}{%
    skipabove=12pt,
    linewidth=3pt,
    rightline=false,
    leftline=true,
    topline=false,
    bottomline=false,
    linecolor=blue,
    backgroundcolor=TealBlue!5,
    innerbottommargin=9pt,
    skipbelow=2pt,
    nobreak=true,
}
\declaretheoremstyle[
    headfont=\sffamily\bfseries\color{MidnightBlue},
    mdframed={style=mdbluebox},
    headpunct={\\[3pt]},
    postheadspace={0pt}
]{thmbluebox}

\mdfdefinestyle{mdredbox}{%
    skipabove=12pt,
    linewidth=3pt,
    rightline=false,
    leftline=true,
    topline=false,
    bottomline=false,
    linecolor=RawSienna,
    backgroundcolor=Salmon!5,
    innerbottommargin=9pt,
    skipbelow=2pt,
    nobreak=true,
}
\declaretheoremstyle[
    headfont=\sffamily\bfseries\color{RawSienna},
    mdframed={style=mdredbox},
    headpunct={\\[3pt]},
    postheadspace={0pt},
]{thmredbox}

\mdfdefinestyle{mdgreenbox}{%
    skipabove=12pt,
    linewidth=3pt,
    rightline=false,
    leftline=true,
    topline=false,
    bottomline=false,
    linecolor=ForestGreen,
    backgroundcolor=ForestGreen!5,
    innerbottommargin=9pt,
    skipbelow=2pt,
    nobreak=true,
}
\declaretheoremstyle[
    headfont=%\sffamily
    \bfseries\color{ForestGreen!70!black},
    mdframed={style=mdgreenbox},
    headpunct={\\[3pt]},
    postheadspace={0pt},
]{thmgreenbox}

\mdfdefinestyle{mdblackbox}{%
    skipabove=8pt,
    linewidth=3pt,
    rightline=false,
    leftline=true,
    topline=false,
    bottomline=false,
    linecolor=black,
    backgroundcolor=RedViolet!5!gray!5,
}
\declaretheoremstyle[
    headfont=\bfseries,
    headpunct={\\[3pt]},
    postheadspace={0pt},
    mdframed={style=mdblackbox}
]{thmblackbox}

\mdfdefinestyle{mdpurplebox}{%
    skipabove=8pt,
    linewidth=3pt,
    rightline=false,
    leftline=true,
    topline=false,
    bottomline=false,
    linecolor=black,
    backgroundcolor=Orchid!10,
}
\declaretheoremstyle[
    headfont=\sffamily\bfseries\color{Orchid},
    mdframed={style=mdpurplebox},
    headpunct={\\[3pt]},
    postheadspace={0pt},
]{thmpurplebox}

%Theorem setup
\theoremstyle{definition}
\newtheorem{definition}{Definition}[chapter]
\newtheorem*{definition*}{Definition}
\newtheorem{theorem}[definition]{Theorem}
\newtheorem*{theorem*}{Theorem}
\newtheorem{lemma}[definition]{Lemma}
\newtheorem*{lemma*}{Lemma}
\newtheorem{proposition}[definition]{Proposition}
\newtheorem*{proposition*}{Proposition}
\newtheorem{corollary}[definition]{Corollary}
\newtheorem*{corollary*}{Corollary}
\newtheorem*{claim}{Claim}
\newtheorem{prbm}{Problem}[chapter]

%\declaretheorem[style=thmbluebox,name=Theorem,numberwithin=chapter]{theorem}
%\declaretheorem[style=thmredbox,name=Definition,sibling=theorem]{definition}
%\declaretheorem[style=thmpurplebox,name=Lemma,sibling=theorem]{lemma}
%\declaretheorem[style=thmpurplebox,name=Proposition,sibling=theorem]{proposition}
%\declaretheorem[style=thmpurplebox,name=Corollary,sibling=theorem]{corollary}
%\declaretheorem[style=thmpurplebox,name=Assumption,sibling=theorem]{assume}
%\declaretheorem[style=thmbluebox,name=Theorem,numbered=no]{theorem*}
%\declaretheorem[style=thmredbox,name=Definition,numbered=no]{definition*}
%\declaretheorem[style=thmpurplebox,name=Lemma,numbered=no]{lemma*}
%\declaretheorem[style=thmpurplebox,name=Proposition,numbered=no]{proposition*}
%\declaretheorem[style=thmpurplebox,name=Corollary,numbered=no]{corollary*}
%\declaretheorem[style=thmpurplebox,name=Assumption,numbered=no]{assume*}
\declaretheorem[style=thmblackbox,name=Example,numbered=no]{example}
%\declaretheorem[style=thmblackbox,name=Example,numbered=no]{example*}
\declaretheorem[style=thmgreenbox,name=Exercise,numbered=no]{exercise}
  
% Customise section headings
\usepackage{titlesec}
\definecolor{darkred}{rgb}{0.9, 0.0, 0.0}
\usepackage[T1]{fontenc}
\titleclass{\part}{top}
\titleformat{\part}[display]
  {\Huge\bfseries\centering}{{\color{darkred}\thepart}}{0pt}{}
\titlespacing*{\part}{0pt}{20pt}{50pt}
\titleformat{\chapter}[hang]{\fontsize{60}{70}\bfseries}{{\color{darkred}\thechapter}\hspace{20pt}}{0pt}{\Huge\bfseries}
\titlespacing*{\chapter}{0pt}{0pt}{0pt} % Spacing below chapter
\titleformat{\section}{\LARGE\bfseries}{{\color{darkred}\S\thesection}}{1em}{}
\titleformat{\subsection}{\Large\bfseries}{{\color{darkred}\S\thesubsection}}{1em}{\itshape}
\setcounter{secnumdepth}{1}