Tweener AS3 extension for color properties "_brightness", "_contrast" and "_saturation" Posted on August 28, 2007 There are a lot of AS3 Animation packages out there, all with pros and cons. One of my favorite tools is Tweener AS3, but at its current version (v.1.0.1) it supports only few color properties such as _color, _color_ra, _color_rb and so on. However, you have the option to create your o