in-header.tex

\usepackage{hyphenat} % auto hyphenation
\usepackage{graphicx} % colors 
\usepackage{wallpaper} % for the background image on title page
\usepackage{geometry} % for margins
\usepackage{xcolor,colortbl} % table colors

\usepackage{ragged2e} % text alignment


\usepackage[most]{tcolorbox} % boxes behind cover page text
\usepackage{setspace} % line spacing
\usepackage{parskip} % paragraph spacing

\usepackage{fvextra} % code hyphenation / styling
\usepackage{fontspec} % mono font
\usepackage[T1]{fontenc}
\usepackage{inconsolata}


\setmonofont{inconsolata} % font for code bits



\setmainfont{MyriadPro}[
    Path=./fonts/,
    Extension = .ttf,
    UprightFont=*-SemiCn,
    BoldFont=*-BoldSemiCn,
    ItalicFont=*-SemiCnIt,
    BoldItalicFont=*-BoldSemiCnIt
]

\onehalfspacing % line spacing

\setlength{\parskip}{1.5em}
\setlength{\parindent}{0pt}

\definecolor{cosmoblue}{RGB}{39,128,227} 
\definecolor{thkoelnred}{RGB}{201,12,15}
\definecolor{thkoelnorange}{RGB}{234,91,12}
\definecolor{thkoelnviolet}{RGB}{184,37,133}
\definecolor{cosmoblack}{RGB}{55,58,60} 

\usepackage{titlesec} % title and section spacing
% \titlespacing*{<command>}{<left>}{<before-sep>}{<after-sep>}
\titlespacing*{\section}{0pt}{1em}{0.1em}
\titlespacing*{\subsection}{0pt}{1em}{0.1em}


% Define a new command to apply single spacing to bold text
\let\oldtextbf\textbf
\renewcommand{\textbf}[1]{%
  \setstretch{1.0}% Set line spacing to single
  \parskip=10pt % Set paragraph spacing (adjust as needed)
  \oldtextbf{#1}%
  \parskip=0pt % Reset paragraph spacing to default after bold text
}

\arrayrulecolor{thkoelnviolet} % table color