In this code, \documentclass{minimal}
\usepackage{tikz}
\usetikzlibrary{calc}
\begin{document}
\pagestyle{empty}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\xdefinecolor{darkgreen}{RGB}{175, 193, 36}
\newcounter{cntShader}
\newcounter{cntRoot}
\setcounter{cntShader}{20}
\colorlet{helixcolor}{darkgreen}
\begin{tikzpicture}
\foreach \y in {86,38,15}{
\setcounter{cntShader}{1}
\coordinate (a) at (0,0);
\coordinate (b) at (0:1);
\foreach \x in {1,...,\y}{
\coordinate (c) at ($ (b)!1cm!270:(a) $);