ColorAnimation for transparent and/or alpha channel colors

[Sebastian Mosiej]

Hi,
color is animated like that

         Behavior on color {
            ColorAnimation {
                duration: 700
                easing.type: Easing.BezierSpline
                easing.bezierCurve: [0.4, 0, 0.2, 1, 1, 1]
            }

between "transparent" and "green".
It there a way to exclude alpha part of color in this animation?