% !TeX root = ./examples/sloth.tex
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% This package is part of the TikZlings package
%% A package to bring cute little animals and other beings into tikz
%% Maintained by samcarter
%%
%% Project repository and bug tracker:
%% https://github.com/samcarter/tikzlings
%%
%% Released under the LaTeX Project Public License v1.3c or later
%% See https://www.latex-project.org/lppl.txt
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ProvidesPackage{tikzlings-sloths}[2024/12/12 version v2.1 Drawing sloths in TikZ]

\RequirePackage{tikz}
\RequirePackage{tikzlings-addons}

\definecolor{slothcol}{RGB}{143,133,105}

\newcommand*{\sloth}[1][]{%
  \begin{scope}%
    \tikzset{/sloth/.cd,#1}%
    \sloth@draw%
  \end{scope}%
  \thing[#1]%
  % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \csname slothhookforeground\endcsname
  \csname tikzlinghookforeground\endcsname
  %  
}

\newif\ifsloth@sleeping
\newif\ifsloth@threeD
\newif\ifsloth@back
\newif\ifsloth@contour

\tikzset{
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % Pass unknown keys on to tikz
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  /sloth/.search also={/tikz,/pgf,/thing},
  /sloth/.cd,
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % body
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  body/.store in     = \sloth@body,
  body               = slothcol,
  eye/.store in      = \sloth@eye,
  eye                = black,   
  eyelid/.store in   = \sloth@eyelid,
  eyelid             = sloth@bright10!50!white,
  mouth/.store in    = \sloth@mouth,
  mouth              = sloth@bright10!40!black,
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % options
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  sleeping/.code     = \sloth@sleepingtrue, 
  3D/.code           = \sloth@threeDtrue,       
  back/.code         = \sloth@backtrue,  
  contour/.code      = \sloth@contourtrue
                       \def\sloth@contour{#1}
                       \def\sloth@mouth{#1}
                       \def\sloth@eyelid{#1},
  contour/.default   = black,  
  outline/.forward to = /sloth/contour,  
}

\def\sloth@draw{%
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % minimal bounding box size 
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \path (-0.7,0.12) rectangle (0.7, 2.27);
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % store the current scale factor
  % from https://github.com/samcarter/tikzlings/issues/3#issuecomment-461373494
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \pgfgettransformentries{\tmpscaleA}{\tmpscaleB}{\tmpscaleC}{\tmpscaleD}{\tmp}{\tmp}%
  \pgfmathsetmacro{\scalingfactor}{sqrt(abs(\tmpscaleA*\tmpscaleD-\tmpscaleB*\tmpscaleC))*sqrt(abs((\pgf@xx/1cm)*(\pgf@yy/1cm)-(\pgf@xy/1cm)*(\pgf@yx/1cm)))}%
  \pgfmathsetmacro{\xscalefactor}{\tmpscaleA}
  \pgfmathsetmacro{\yscalefactor}{\tmpscaleD}
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % 
  % switch between 2D, 3D and contours, from
  % https://chat.stackexchange.com/transcript/message/45991801#45991801
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \ifsloth@threeD
    \def\sloth@part@draw[##1]{\shade[ball color=##1]}
  \else% 3D
    \ifsloth@contour
      \def\sloth@part@draw[##1]{\draw[##1,\sloth@contour,fill=white,line width=\scalingfactor*0.4pt]}
    \else% contour
      \def\sloth@part@draw[##1]{\fill[##1]}
    \fi% contour
  \fi% 3D
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % generating saturated/brighter version of body colour
  %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \extractcolorspecs{\sloth@body}{\sloth@model}{\sloth@colorspec}
  \convertcolorspec{\sloth@model}{\sloth@colorspec}{hsb}{\sloth@hsbcolorspec}
  \pgfmathsetmacro{\sloth@hue}{(array({\sloth@hsbcolorspec},0))}
  \pgfmathsetmacro{\sloth@sat}{(array({\sloth@hsbcolorspec},1))}
  \pgfmathsetmacro{\sloth@bright}{(array({\sloth@hsbcolorspec},2))+0.1}
  \definecolor{sloth@bright10}{hsb}{\sloth@hue,\sloth@sat,\sloth@bright}
  %  
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % Body parts
  % 
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \csname slothhookbackground\endcsname
  \csname tikzlinghookbackground\endcsname
  %
  % Arms if back %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \ifsloth@back
    \sloth@part@draw[sloth@bright10] (0.53,0.95) ellipse[x radius=0.1, y radius=0.27, rotate=10];
    \sloth@part@draw[sloth@bright10] (-0.53,0.95) ellipse[x radius=0.1, y radius=0.27, rotate=-10];  
  \fi% back
  %
  % Feet if back%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \ifsloth@back
    \fill[sloth@bright10!50!black] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019,rotate=-10];
    \fill[sloth@bright10!50!black] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
    \fill[sloth@bright10!50!black] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
    \fill[sloth@bright10!50!black] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
    \fill[sloth@bright10!50!black] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
    \fill[sloth@bright10!50!black] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
    \sloth@part@draw[sloth@bright10] (0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=25];
    \sloth@part@draw[sloth@bright10] (-0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=-25];
  \fi% back
  %
  % Body %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \sloth@part@draw[\sloth@body] (0.53,0.85) .. controls (0.53,0.29) and (0.32,0.22) .. (0,0.22) .. controls (-0.32,0.22) and (-0.53,0.29) .. 
  (-0.53,0.85) .. controls (-0.53,1.41) and (-0.32,1.87) .. (0,1.87) .. controls (0.33,1.87) and (0.53,1.41) .. (0.53,0.85) -- cycle;
  %
  % Belly %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \unless\ifsloth@back
    \sloth@part@draw[sloth@bright10!70!white] (0.36, 0.74) .. controls (0.36, 0.49) and (0.22, 0.41) .. (0, 0.41) .. controls (-0.22, 0.41) and (-0.36, 0.49) .. (-0.36, 0.74) .. controls (-0.36, 1) and (-0.22, 1.16) .. (0, 1.16) .. controls (0.22, 1.16) and (0.36, 1) .. (0.36, 0.74) -- cycle;
  \fi% back
  %
  % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \csname slothhookbelly\endcsname
  \csname tikzlinghookbelly\endcsname
  %
  % Hair %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \sloth@part@draw[sloth@bright10] (-0.1128,2.0724) .. controls (-0.1128,2.0724) and (-0.1499,2.2329) .. (-0.0972,2.2525) .. controls (-0.1082,2.1318) and (-0.0047,2.0839) .. (-0.0047,2.0839) .. controls (-0.0047,2.0839) and (-0.0219,2.1866) .. (0.0145,2.1933) .. controls (0.0142,2.1159) and (0.0770,2.0884) .. (0.0770,2.0884) -- cycle;
  %
  % Head %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \sloth@part@draw[sloth@bright10] 
  ( 0.50,1.67) .. controls ( 0.50,1.91) and ( 0.27,2.10) .. 
  ( 0.00,2.10) .. controls (-0.27,2.10) and (-0.50,1.91) .. (-0.50,1.67) .. controls (-0.50,1.43) and (-0.33,1.28) .. 
  ( 0.00,1.28) .. controls ( 0.33,1.28) and ( 0.50,1.43) .. 
  ( 0.50,1.67) -- cycle;
  %
  % Show details only from the front %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \unless\ifsloth@back
    %
    % Inner part of hat %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \sloth@part@draw[sloth@bright10!50!white] ( 0.40,1.67) .. controls ( 0.40,1.90) and ( 0.12,2.09) .. ( 0.00,1.93) .. controls (-0.12,2.09) and (-0.40,1.90) .. (-0.40,1.67) .. controls (-0.40,1.45) and (-0.25,1.38) .. ( 0.00,1.38) .. controls ( 0.25,1.38) and ( 0.40,1.45) .. ( 0.40,1.67) -- cycle;
    %
    % behind the eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \ifsloth@contour
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.3785,1.5336) .. controls (0.3012,1.5864) and (0.1829,1.6693) .. (0.1377,1.7234) .. controls (0.1184,1.7464) and (0.1624,1.8242) .. (0.1906,1.8137) .. controls (0.2673,1.7851) and (0.3597,1.7125) .. (0.3994,1.6531) .. controls (0.4129,1.6328) and (0.3785,1.5336) .. (0.3785,1.5336) -- cycle;
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.3785,1.5336) .. controls (-0.3012,1.5864) and (-0.1829,1.6693) .. (-0.1377,1.7234) .. controls (-0.1184,1.7464) and (-0.1624,1.8242) .. (-0.1906,1.8137) .. controls (-0.2673,1.7851) and (-0.3597,1.7125) .. (-0.3994,1.6531) .. controls (-0.4129,1.6328) and (-0.3785,1.5336) .. (-0.3785,1.5336) -- cycle;
    \else% contour
      \fill[sloth@bright10!60!black] (0.3785,1.5336) .. controls (0.3012,1.5864) and (0.1829,1.6693) .. (0.1377,1.7234) .. controls (0.1184,1.7464) and (0.1624,1.8242) .. (0.1906,1.8137) .. controls (0.2673,1.7851) and (0.3597,1.7125) .. (0.3994,1.6531) .. controls (0.4129,1.6328) and (0.3785,1.5336) .. (0.3785,1.5336) -- cycle;
      \fill[sloth@bright10!60!black] (-0.3785,1.5336) .. controls (-0.3012,1.5864) and (-0.1829,1.6693) .. (-0.1377,1.7234) .. controls (-0.1184,1.7464) and (-0.1624,1.8242) .. (-0.1906,1.8137) .. controls (-0.2673,1.7851) and (-0.3597,1.7125) .. (-0.3994,1.6531) .. controls (-0.4129,1.6328) and (-0.3785,1.5336) .. (-0.3785,1.5336) -- cycle;
    \fi% contour
    %
    % Eyes %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \ifsloth@sleeping
      \fill[\sloth@eyelid] (0.195, 1.705) rectangle ++(0.005, 0.02);  
      \fill[\sloth@eyelid,rotate around={22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
      \fill[\sloth@eyelid,rotate around={44:(0.195, 1.76)}] (0.195, 1.701) rectangle ++(0.005, 0.02);   
      \fill[\sloth@eyelid,rotate around={-22:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02); 
      \fill[\sloth@eyelid,rotate around={-44:(0.195, 1.76)}] (0.195, 1.705) rectangle ++(0.005, 0.02);     
      %
      \fill[\sloth@eyelid] (-0.195, 1.705) rectangle ++(0.005, 0.02);  
      \fill[\sloth@eyelid,rotate around={22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
      \fill[\sloth@eyelid,rotate around={44:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02);   
      \fill[\sloth@eyelid,rotate around={-22:(-0.195, 1.76)}] (-0.195, 1.705) rectangle ++(0.005, 0.02); 
      \fill[\sloth@eyelid,rotate around={-44:(-0.195, 1.76)}] (-0.195, 1.701) rectangle ++(0.005, 0.02);  
      %
      \sloth@part@draw[\sloth@eyelid] (0.237, 1.743) .. controls (0.237, 1.712) and (0.157, 1.712) .. (0.157, 1.743) .. controls (0.157, 1.802) and (0.237, 1.802) .. (0.237, 1.743) -- cycle;
      \sloth@part@draw[\sloth@eyelid] (-0.237, 1.743) .. controls (-0.237, 1.712) and (-0.157, 1.712) .. (-0.157, 1.743) .. controls (-0.157, 1.802) and (-0.237, 1.802) .. (-0.237, 1.743) -- cycle;  
    \else% sleeping
      \sloth@part@draw[\sloth@eye] (0.193,1.75) circle[radius=0.04];
      \sloth@part@draw[\sloth@eye] (-0.193,1.75) circle[radius=0.04];
      \fill[white] (-0.2  ,1.765) circle[radius=0.006];
      \fill[white] ( 0.186,1.765) circle[radius=0.006];
    \fi% sleeping
    %
    % Nose %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \sloth@part@draw[sloth@bright10!40!black] (0,1.665) ellipse[x radius=0.078, y radius=0.048];
    %
    % Mouth %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \draw[\sloth@mouth,line width=\scalingfactor*0.4pt]  (0.115, 1.55) arc [start angle=-40, end angle=-140, radius=0.16];
    %
    % Arms %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \sloth@part@draw[sloth@bright10] (-0.50, 1.24) .. controls (-0.54, 1.24) and (-0.55, 1.20) .. (-0.56, 1.17) .. controls (-0.61, 1.06) and (-0.63, 0.95) .. (-0.64, 0.83) .. controls (-0.64, 0.80) and (-0.64, 0.77) .. (-0.63, 0.74) .. controls (-0.57, 0.66) and (-0.47, 0.60) .. (-0.38, 0.56) .. controls (-0.31, 0.54) and (-0.23, 0.52) .. (-0.16, 0.54) .. controls (-0.12, 0.54) and (-0.10, 0.59) .. (-0.13, 0.61) .. controls (-0.17, 0.68) and (-0.24, 0.73) .. (-0.30, 0.77) .. controls (-0.34, 0.79) and (-0.38, 0.81) .. (-0.42, 0.83) .. controls (-0.41, 0.92) and (-0.41, 1.01) .. (-0.42, 1.09) .. controls (-0.43, 1.14) and (-0.44, 1.19) .. (-0.48, 1.23) .. controls (-0.48, 1.24) and (-0.49, 1.24) .. (-0.50, 1.24) -- cycle;
    \sloth@part@draw[sloth@bright10] (0.50, 1.24) .. controls (0.54, 1.24) and (0.55, 1.20) .. (0.56, 1.17) .. controls (0.61, 1.06) and (0.63, 0.95) .. (0.64, 0.83) .. controls (0.64, 0.80) and (0.64, 0.77) .. (0.63, 0.74) .. controls (0.57, 0.66) and (0.47, 0.60) .. (0.38, 0.56) .. controls (0.31, 0.54) and (0.23, 0.52) .. (0.16, 0.54) .. controls (0.12, 0.54) and (0.10, 0.59) .. (0.13, 0.61) .. controls (0.17, 0.68) and (0.24, 0.73) .. (0.30, 0.77) .. controls (0.34, 0.79) and (0.38, 0.81) .. (0.42, 0.83) .. controls (0.41, 0.92) and (0.41, 1.01) .. (0.42, 1.09) .. controls (0.43, 1.14) and (0.44, 1.19) .. (0.48, 1.23) .. controls (0.48, 1.24) and (0.49, 1.24) .. (0.50, 1.24) -- cycle;
    %
    \ifsloth@contour
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=110];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=117];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=125];
      %
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=-110];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=-117];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=-125];
    \else% contour
      \fill[sloth@bright10!50!black] (0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=110];
      \fill[sloth@bright10!50!black] (0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=117];
      \fill[sloth@bright10!50!black] (0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=125];
      %
      \fill[sloth@bright10!50!black] (-0.15, 0.61) ellipse[x radius=0.017, y radius=0.07, rotate=-110];
      \fill[sloth@bright10!50!black] (-0.17, 0.57) ellipse[x radius=0.015, y radius=0.07, rotate=-117];
      \fill[sloth@bright10!50!black] (-0.19, 0.53) ellipse[x radius=0.012, y radius=0.062, rotate=-125];
    \fi% contour
    %
    % Feet %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \sloth@part@draw[sloth@bright10] (0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=25];
    \sloth@part@draw[sloth@bright10] (-0.33,0.31) ellipse[x radius=0.25, y radius=0.13, rotate=-25];
    %
    \ifsloth@contour
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=-10];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
      \draw[\sloth@contour,fill=white,line width=\scalingfactor*0.4pt] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
    \else% contour
      \fill[sloth@bright10!50!black] (-0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=-10];
      \fill[sloth@bright10!50!black] (-0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=-16];
      \fill[sloth@bright10!50!black] (-0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=-22];
      \fill[sloth@bright10!50!black] (0.125,0.265) ellipse[x radius=0.07, y radius=0.019, rotate=10];
      \fill[sloth@bright10!50!black] (0.14,0.21) ellipse[x radius=0.07, y radius=0.017, rotate=16];
      \fill[sloth@bright10!50!black] (0.16,0.165) ellipse[x radius=0.07, y radius=0.015, rotate=22];
    \fi% contour
    %
  \fi% back
  %
  % adding hook for users to customise %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \csname slothhookbody\endcsname
  \csname tikzlinghookbody\endcsname
  %
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% Documentation
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\clearpage
%\section[Sloth]{Riley, the sloth}
%
%\emph{One of good souls behind the TugBoat once met a sloth called Riley}
%
%\subsection{Package name}
%
%\begin{tcolorbox}[title={Package usage}]
%\begin{samcode}
%\usepackage{tikzlings-sloths}
%\end{samcode}
%\end{tcolorbox}
%
%\subsection{Basic Usage}
%
%\begin{tcblisting}{title={Basic sloth}}
%\sloth
%\end{tcblisting}
%
%\subsection{Options}
%
%The basic sloth can be modified by changing its colour:
%\begin{tcblisting}{title={Body colour}}
%\sloth[body=blue]
%\end{tcblisting}
%
%In addition to the colour of the body, the colour of various body parts can be adjusted:
%\begin{tcblisting}{title={Eye colour}}
%\sloth[eye=red]
%\end{tcblisting}
%\begin{tcblisting}{title={Mouth colour}}
%\sloth[mouth=red]
%\end{tcblisting}
%
%If tired, the sloth can take a nap:
%\begin{tcblisting}{title={Sleep}}
%\sloth[sleeping]
%\end{tcblisting}
%\begin{tcblisting}{title={Eyelid colour}}
%\sloth[sleeping,eyelid=red]
%\end{tcblisting}
%
%To view the sloth from behind:
%\begin{tcblisting}{title={Back view}}
%\sloth[back]
%\end{tcblisting}
%
%The key \saminline|3D| will make the sloth 3-dimensional:
%\begin{tcblisting}{title={3D view}}
%\sloth[3D]
%\end{tcblisting}
%
%And finally the \saminline|contour| key will only draw the outlines:
%\begin{tcblisting}{title={Contours}}
%\sloth[contour=black]
%\end{tcblisting}