I need to draw a rectangle with a zigzag side as a kraft paper bag. How can I fill it properly with the color?
\documentclass{article}
\usepackage{tikz}
\usepackage{xcolor}
\usetikzlibrary{decorations.pathmorphing}
\tikzset{zigzag/.style={decorate,decoration=zigzag}}
\definecolor{sandybrown}{rgb}{0.96, 0.64, 0.38}
\begin{document}
\begin{tikzpicture}
\draw[thick,sandybrown,zigzag] (-2,0) coordinate(a) -- (2,0) coordinate(b);
\coordinate (r) at (-2,-5);
\coordinate (n) at (2,-5);
\draw[fill=sandybrown] (a) -- (r) -- (n) -- (b);
\draw[thick,sandybrown,zigzag] (-2,0) coordinate(a) -- (2,0) coordinate(b);
\end{tikzpicture}
\end{document}
