preamble.tex

\usepackage{pdfpages}

\usepackage{booktabs}
\usepackage{amsthm}
\usepackage{float}
\usepackage{wrapfig}
\usepackage{caption}
\usepackage{fancyhdr}

\usepackage{fontspec}
\renewcommand*\familydefault{\rmdefault}

\makeatletter
\def\thm@space@setup{%
  \thm@preskip=8pt plus 2pt minus 4pt
  \thm@postskip=\thm@preskip
}

\usepackage{tcolorbox}

\definecolor{yellownote}{RGB}{254,255,156}
\definecolor{bluenote}{RGB}{218,238,255}

\newtcolorbox{notebox}{
  colback=yellownote,
  colframe=black,
  coltext=black,
  boxsep=4pt,
  fontupper=\small,
  fontlower=\small,
  arc=3pt}

\newtcolorbox{tipbox}{
  colback=bluenote,
  colframe=black,
  coltext=black,
  boxsep=4pt,
  fontupper=\small,
  fontlower=\small,
  arc=3pt}


\newenvironment{rnote}{\par\raggedleft}{\par}

\makeatother

\let\oldmaketitle\maketitle
\AtBeginDocument{\let\maketitle\relax}