template.tex

\documentclass[$if(fontsize)$$fontsize$,$endif$$if(lang)$$babel-lang$,$endif$$if(papersize)$$papersize$paper,$endif$$for(classoption)$$classoption$$sep$,$endfor$]{{extarticle}}

% parts used from default template

\usepackage{hyperref}
\hypersetup{unicode=true,
            pdftitle={$title$},
            pdfborder={0 0 0},
            breaklinks=true}
\urlstyle{same}  % don't use monospace font for urls
\usepackage{parskip}

%%% Change title format to be more compact
\usepackage{titling}

% Create subtitle command for use in maketitle
\newcommand{\subtitle}[1]{
  \posttitle{
    \begin{center}\large#1\end{center}
    }
}

\setlength{\droptitle}{-2em}

  \title{$title$}
    \pretitle{\vspace{\droptitle}\centering\huge}
  \posttitle{\par}
    \author{}
    \preauthor{}\postauthor{}
    \date{}
    \predate{}\postdate{}

% customisations

\usepackage[margin=1in,includeheadfoot,headsep=0in,headheight=0in,footskip=17pt]{geometry} % footskip must be min 16.11801pt
\usepackage{graphicx,grffile}
\usepackage{mathspec}
\usepackage{fontspec}
\usepackage[default,scale=0.95]{opensans}
\usepackage[T1]{fontenc}
\usepackage{hyperref}
\usepackage{fancyhdr}
\usepackage{varwidth}
\usepackage{tcolorbox}
% avoid warnings from legacy everypage package
\newcommand*{\AddEverypageHook}[1]{%
 \AddToHook{shipout/background}{\put(1in,-1in){#1}}}
\newcommand*{\AddThispageHook}[1]{%
 \AddToHookNext{shipout/background}{\put(1in,-1in){#1}}}
\makeatletter
\disable@package@load{everypage}{}
\makeatother
\usepackage{background}
\tcbuselibrary{skins} % needed for border image (enhanced box type)
\definecolor{Rblue}{HTML}{2369bd}
\backgroundsetup{contents={
  \begin{tcolorbox}[
    enhanced,                   % box type
    colback=white,              % can't be transparent (else see frame image)
    $if(border_image)$
    frame style image=color7_border.pdf, % image behind interior box
    $else$
    colframe=Rblue, % colour if image does not exist
    $endif$
    watermark graphics=logo.png, % (on top of colback)
    watermark zoom=0.9,         % zoom relative to interior of box
    outer arc=0mm, arc=0mm,     % square corners
    boxrule=8pt,                % border thickness
    add to width = 1in]         % 1in wider than \textwidth
  \vspace{\textheight}          % make as tall as body (inc. header and footer)
  \vspace{1in}                  % ...plus 1in
  \end{tcolorbox}
  }, angle=0, scale=1}          % background fills page
% define \opensans if necessary (older version of opensans package)
\providecommand{\opensans}{\normalfont}
\fancypagestyle{plain}{%  the preset of fancyhdr
  \fancyhf{}
  \renewcommand{\headrulewidth}{0pt}
  \renewcommand{\footrulewidth}{0pt}
  \fancyfoot[CO]{
    \opensans $organization$: \href{https://$organization_url$}{\nolinkurl{$organization_url$}}}}% https:// in variable causes compilation issues

\begin{document}

\opensans

$if(title)$
\maketitle
$endif$

$body$

\end{document}