main.tex

\documentclass[a5paper]{article}
\usepackage{amsmath}
\usepackage{amssymb} %for the items

% code for graph paper background - from https://tex.stackexchange.com/a/311407

\def\mygraphpaper{%
  \begin{tikzpicture}
    \draw[line width=.4pt,draw=black!30] (0,0) grid[step=1mm] (\paperwidth,\paperheight);
    \draw[line width=.4pt,draw=red!50] (0,0) grid[step=1cm] (\paperwidth,\paperheight);
  \end{tikzpicture}%
}
\usepackage{tikz}
\usepackage{background}
\backgroundsetup{
  angle=0,
  contents=\mygraphpaper,
  color=black,
  scale=1,
}

% code to make organic highlights - from https://tex.stackexchange.com/a/6029
\usepackage{soul}
\usepackage{tikz}
\usetikzlibrary{calc}
\usetikzlibrary{decorations.pathmorphing}

\makeatletter
    \newcommand{\defhighlighter}[3][]{%
      \tikzset{every highlighter/.style={color=#2, fill opacity=#3, #1}}%
    }
    
    \defhighlighter{yellow}{.5}
    
    \newcommand{\highlight@DoHighlight}{
      \fill [ decoration = {random steps, amplitude=1pt, segment length=15pt}
            , outer sep = -15pt, inner sep = 0pt, decorate
            , every highlighter, this highlighter ]
            ($(begin highlight)+(0,8pt)$) rectangle ($(end highlight)+(0,-3pt)$) ;
    }
    
    \newcommand{\highlight@BeginHighlight}{
      \coordinate (begin highlight) at (0,0) ;
    }
    
    \newcommand{\highlight@EndHighlight}{
      \coordinate (end highlight) at (0,0) ;
    }
    
    \newdimen\highlight@previous
    \newdimen\highlight@current
    
    \DeclareRobustCommand*\highlight[1][]{%
      \tikzset{this highlighter/.style={#1}}%
      \SOUL@setup
      %
      \def\SOUL@preamble{%
        \begin{tikzpicture}[overlay, remember picture]
          \highlight@BeginHighlight
          \highlight@EndHighlight
        \end{tikzpicture}%
      }%
      %
      \def\SOUL@postamble{%
        \begin{tikzpicture}[overlay, remember picture]
          \highlight@EndHighlight
          \highlight@DoHighlight
        \end{tikzpicture}%
      }%
      %
      \def\SOUL@everyhyphen{%
        \discretionary{%
          \SOUL@setkern\SOUL@hyphkern
          \SOUL@sethyphenchar
          \tikz[overlay, remember picture] \highlight@EndHighlight ;%
        }{%
        }{%
          \SOUL@setkern\SOUL@charkern
        }%
      }%
      %
      \def\SOUL@everyexhyphen##1{%
        \SOUL@setkern\SOUL@hyphkern
        \hbox{##1}%
        \discretionary{%
          \tikz[overlay, remember picture] \highlight@EndHighlight ;%
        }{%
        }{%
          \SOUL@setkern\SOUL@charkern
        }%
      }%
      %
      \def\SOUL@everysyllable{%
        \begin{tikzpicture}[overlay, remember picture]
          \path let \p0 = (begin highlight), \p1 = (0,0) in \pgfextra
            \global\highlight@previous=\y0
            \global\highlight@current =\y1
          \endpgfextra (0,0) ;
          \ifdim\highlight@current < \highlight@previous
            \highlight@DoHighlight
            \highlight@BeginHighlight
          \fi
        \end{tikzpicture}%
        \the\SOUL@syllable
        \tikz[overlay, remember picture] \highlight@EndHighlight ;%
      }%
      \SOUL@
    }
    \makeatother

% Some cute fonts

\usepackage{fontspec} %fontes diferentonas
\usepackage{wedn}
\usepackage[T1]{fontenc}
% from https://tug.org/FontCatalogue/calligraphicalfonts.html
\setmainfont{QTBlackForest} 
\newfontfamily\myfont{QTArtiston}

% Some cute symbols
\usepackage{marvosym} % try \Bat, \Heart ...

%Pre-settings

\newenvironment{myitems}
    {\renewcommand{\labelitemi}{\highlight[orange]{\Heart}}
    \renewcommand\labelitemii{\highlight[pink]{$\square$}}
    \begin{itemize}
        \item
    }
    { \end{itemize}
    }
    
\newenvironment{mybox}
    {\begin{tabular}{|p{0.7\textwidth}|}
    \hline
    \begin{center}\highlight[white]{\Heart}\end{center}\\
    }
    { 
    \\
    \begin{center}\highlight[white]{\Heart}\end{center}
    \\\\ \hline
    \end{tabular}
    }
    
\begin{document}
\input{page_model}
\end{document}