\begin{Verbatim}[commandchars=\\\{\}]
\PYG{c+c1}{\PYGZsh{} Full height shafts, giving pointed boxes:}
\PYG{n}{gd\PYGZus{}feature\PYGZus{}set}\PYG{o}{.}\PYG{n}{add\PYGZus{}feature}\PYG{p}{(}\PYG{n}{feature}\PYG{p}{,} \PYG{n}{sigil}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}ARROW\PYGZdq{}}\PYG{p}{,} \PYG{n}{color}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}brown\PYGZdq{}}\PYG{p}{,} \PYG{n}{arrowshaft\PYGZus{}height}\PYG{o}{=}\PYG{l+m+mf}{1.0}\PYG{p}{)}
\PYG{c+c1}{\PYGZsh{} Or, thin shafts:}
\PYG{n}{gd\PYGZus{}feature\PYGZus{}set}\PYG{o}{.}\PYG{n}{add\PYGZus{}feature}\PYG{p}{(}\PYG{n}{feature}\PYG{p}{,} \PYG{n}{sigil}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}ARROW\PYGZdq{}}\PYG{p}{,} \PYG{n}{color}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}teal\PYGZdq{}}\PYG{p}{,} \PYG{n}{arrowshaft\PYGZus{}height}\PYG{o}{=}\PYG{l+m+mf}{0.2}\PYG{p}{)}
\PYG{c+c1}{\PYGZsh{} Or, very thin shafts:}
\PYG{n}{gd\PYGZus{}feature\PYGZus{}set}\PYG{o}{.}\PYG{n}{add\PYGZus{}feature}\PYG{p}{(}
    \PYG{n}{feature}\PYG{p}{,} \PYG{n}{sigil}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}ARROW\PYGZdq{}}\PYG{p}{,} \PYG{n}{color}\PYG{o}{=}\PYG{l+s+s2}{\PYGZdq{}darkgreen\PYGZdq{}}\PYG{p}{,} \PYG{n}{arrowshaft\PYGZus{}height}\PYG{o}{=}\PYG{l+m+mf}{0.1}
\PYG{p}{)}
\end{Verbatim}
