Hi !
I try to animate a backgroundColor from rgba(0, 0, 0, 0) to rgba(0, 0, 0, 0.65).
Behavior expected : tweenlite would tween alpha parameter only (rendering grayscales fading hover other layers).
Behavior seen : tweenlite tweens red, green, blue and alpha parameters.
See codepen : hover firebug inspector on .red to track it, then hover in/out the button.
Notice that when tweening from 0.65 to 0, the behavior is correct.
@+