I am trying to run a rather simple code using tikz and a pgf library. My simple code is
\documentclass{book}
\usepackage[explicit]{titlesec}
\usepackage{fourier}
\usepackage{tikz}
\usepackage{epigraph}
\usepgflibrary{qrr.shapes.openrectangle}
\begin{document}
This is a test document
\end{document}
This code was copied from Gonzalo Medina's answer in Customizing chapter style with tikz. When I run this code I get the error
'!Package pgf Error: I did not find the pgf library qrr.shapes.openrectangle'.
I am using TeXLive-2014 (actually I installed it yesterday) but nonetheless I updated all packages just in case, but that didn't seem to help.
Any idea how to use this specific library and why it cannot be found in the texmf trees?

TeXLiveand secondly and more important there is no~/texmfdirectory... thanos@thanos-laptop:~$ cd ~/texmf bash: cd: /home/thanos/texmf: No such file or directory – Thanos Jun 29 '14 at 15:52/usr/local/texlive/2014/texmf-dist/tex/latex. I searchedGitHubbut which files should I download? – Thanos Jun 29 '14 at 16:58mkdir ~/texmf. – cfr Jun 29 '14 at 20:41