olton/Metro-UI-CSS — pull request #365 by jtolar (2013-11-15 14:58:39+00:00)
Title: New data attributes to dropdown container to invert container

Changed the script to include two data attributes on the div container
of a dropdown button.

data-invert-selected="true" instructs the _toggleSelected method to
invert the colors on the parent div.

data-selected-classes="bg-white fg-black" gives the _toggleSelected
method the inversion classes.