给displayobject增加颜色
var ct:ColorTransform = new ColorTransform();
ct.redOffset = value;
ct.blueOffset = value;
ct.greenOffset = value;
image.transform.colorTransform = ct;
var ct:ColorTransform = new ColorTransform();
ct.redOffset = value;
ct.blueOffset = value;
ct.greenOffset = value;
image.transform.colorTransform = ct;