Package coloring: define missing colors by their names
Copyright (C) 2016 Zou Hu <zohooo@yeah.net>
Please report bugs, problems, and suggestions via
https://github.com/zohooo/coloring
The package may be distributed and/or modified under the conditions
of the LaTeX Project Public License, either version 1.3 of this
license or (at your option) any later version. The latest version
of this license is in
http://www.latex-project.org/lppl.txt