cloudhead/less.js — pull request #661 by Oskariok (2012-02-25 10:57:00+00:00)
Title: Added Invert color function

Simple invert function that is similar to invert function is Sass.
I have used this modification in my own projects for a while but I finally had some time to make this fork.

This fixes my original feature request https://github.com/cloudhead/less.js/issues/589