notestyles.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{notestyles}[2022/11/27 Kayzels Notes Styles]

% Maths
\usepackage{amssymb}
\usepackage{amsmath}

% Lists
\usepackage{enumitem}

% Language Settings
\RequirePackage[english]{babel}
\setlocalecaption{english}{chapter}{Unit}

% Bookmarks
\usepackage[bookmarksnumbered]{hyperref}

% Proofs
\RequirePackage[amsmath,amsthm,thmmarks,hyperref]{ntheorem}
\renewcommand\proofSymbol{\ensuremath{\blacksquare}}

\newenvironment{subproof}[1][\proofname]{%
	\renewcommand\proofSymbol{\ensuremath{\square}}
  \begin{proof}[#1]%
}{%
  \end{proof}%
}

% Headers, Footers and Margins
\RequirePackage[margin=2cm, vmargin=3cm]{geometry}
\RequirePackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}
\fancyhead[LE,RO]{\nouppercase{\rightmark}}
\fancyhead[LO,RE]{\leftmark}
\fancyfoot[C]{\thepage}
\setlength{\headheight}{14pt}
\setlength{\parindent}{0cm}
\RequirePackage{multicol}

% Fonts
\RequirePackage[T1]{fontenc}
\RequirePackage{charter}
\RequirePackage[varqu,varl]{inconsolata}
\RequirePackage[type1]{cabin}
\RequirePackage[xcharter]{newtxmath}
\RequirePackage{bm}

% Colors
\RequirePackage[dvipsnames,table]{xcolor}
\colorlet{circle area}{Lavender}
\colorlet{example color}{blue!15!white}
\colorlet{example title}{black}
\colorlet{note color}{red!15!white}
\colorlet{note border}{red!75!black}
\colorlet{exercise color}{orange!25!white}
\colorlet{exercise border}{orange!75!black}
\colorlet{theorem color}{MidnightBlue!20!white}
\colorlet{theorem border}{MidnightBlue!75!black}
\colorlet{definition color}{Aquamarine!30!white}
\colorlet{definition border}{Aquamarine!75!black}

% Bold Math
\let\oldtextbf\textbf
\renewcommand{\textbf}[1]{\oldtextbf{\boldmath #1}}
\makeatletter
\g@addto@macro\bfseries{\boldmath}
\makeatother
\makeatletter
\g@addto@macro\normalfont{\unboldmath}
\makeatother

% LaTex Tooling
\RequirePackage{etoolbox}
\RequirePackage{xargs}

% Color Boxes
\RequirePackage{parskip}
\RequirePackage{tcolorbox}
\tcbuselibrary{breakable}
\RequirePackage{adjustbox}
\newenvironment{sidenote}[2][]
	{\tcolorbox[breakable, colback=note color, colframe=note border, fonttitle=\bfseries, title={#2}, center title, parbox=false, center, #1]}
	{\endtcolorbox}
\newenvironment{exercise}[2][]
	{\tcolorbox[breakable, colback=exercise color, colframe=exercise border, fonttitle=\bfseries, title={#2}, center title, parbox=false, center, #1]}
	{\endtcolorbox}
\newenvironment{example}[1][]
	{\tcolorbox[coltitle=example title, colback=example color, breakable, detach title, before upper={\tcbtitle\quad}, title=\textbf{Example}, parbox=false, center, #1]}
	{\endtcolorbox}
\newenvironment{theorem}[2][]
	{\tcolorbox[breakable, colback=theorem color, colframe=theorem border, fonttitle=\bfseries, title={#2}, center title, parbox=false, center #1]}
	{\endtcolorbox}
\newenvironment{definition}[2][]
	{\tcolorbox[breakable, colback=definition color, colframe=definition border, fonttitle=\bfseries, title={#2}, center title, parbox=false, center, #1]}
	{\endtcolorbox}

% Include/Input Subfiles
\RequirePackage{xstring}
\RequirePackage{subfiles}
\newcommand{\addfile}[2][include]
	{\clearpage\begingroup\pagestyle{empty}\cleardoublepage\endgroup%
	 \IfEqCase{#1}{%
			{include}{\subfileinclude{#2}}%
			{input}{\subfile{#2}}
	 }[\PackageError{addfile}{Undefined option to addfile: #1}{}]%
	}

% Horizontal Rules at document ends
\newcommand{\rulebookend}{\vbox{\hrule width \hsize \kern 1mm \hrule width \hsize height 2pt}%
	\cfoot{}}
\newcommand{\rulechapterend}{\noindent\rule{\textwidth}{0.4pt}%
	\cfoot{}
}

% Indented Paragraphs
\RequirePackage{changepage}
\newenvironment{indentparagraph}{\begin{adjustwidth}{2em}{}}{\end{adjustwidth}}

% Images
\RequirePackage{tikz}
\usetikzlibrary{fit, backgrounds, topaths}
\tikzstyle{every picture}+=[remember picture]

% Venn Diagrams
\RequirePackage{venndiagram}
\makeatletter
\def\addvennback{%
	\expandafter\ifpatchable{\fillAll}{]}{%
		\expandafter\patchcmd%
			{\fillAll}{]}{,.. this/.try]}{}{}%
		\pgfutil@namelet{fillAll@orig}{fillAll}%
		\newcommand{\fillBack}{%
			\tikzset{.. this/.style={fill=white}}%
			\csname fillAll@orig\endcsname
		}%
	}{}%
}
\makeatother
\preto\tikzpicture{\addvennback}{}{}
\newenvironmentx{venntwo}[2][1,2]
	{
		\begin{venndiagram2sets}[shade=circle area,#1]%
		\fillBack%
		\ifstrempty{#2}{}{\setpostvennhook
		{
			\node[above] at (current bounding box.north) {#2};
		}}
		}%
	{\end{venndiagram2sets}}
\newenvironmentx{vennthree}[2][1,2]
	{
		\begin{venndiagram3sets}[shade=circle area,#1]%
		\fillBack%
		\ifstrempty{#2}{}{\setpostvennhook
		{
			\node[above] at (current bounding box.north) {#2};
		}}
		}%
	{\end{venndiagram3sets}}

% Tables
\RequirePackage{tabularray}
\UseTblrLibrary{booktabs}
\UseTblrLibrary{varwidth}
\SetTblrInner[tblr]{measure=vbox}

% Questions and Answers
\newlist{questions}{enumerate}{2}
\setlist[questions, 1]{label=\arabic*., first=\bfseries}
\setlist[questions, 2]{label=(\alph*), first=\bfseries}
\newenvironment{answer}{\normalfont}{}

% Questions, Concepts and Emphasis Styling
\newcommand{\concept}[1]{\textbf{#1}}

% TOC Page Number Spacing
\makeatletter
\renewcommand{\@pnumwidth}{1.75em} 
\makeatother