bernii/gauge.js — pull request #21 by dverbeir (2013-02-07 17:15:30+00:00)
Title: percentColors option: gauge with single color that gradually changes with the value  

Color of the gauge changes according to a series of percentage->color configuration
items, interpolating the color for the current value.
This was inspired by http://justgage.com/

Also added option to have a horizontal linear gradient instead of a radial one (this is when not using the percentColors).