pdfcol
Defines macros fpr maintaining color stacks under pdfTeX.
Since version 1.40 pdfTeX supports color stacks.
The driver file pdftex.def for package
color defines and uses a main color
stack since version v0.04b.
This package is intended for package writers.
It defines macros for setting and maintaining new color stacks.
The package is part of the oberdiek
bundle.