public int getOpacity() {
        switch (mState.mUseColor >>> 24) {
            case 255:
                return PixelFormat.OPAQUE;
            case 0:
                return PixelFormat.TRANSPARENT;
        }
        return PixelFormat.TRANSLUCENT;
    }
Setting a color filter on a ColorDrawable has no effect.

@param colorFilter Ignore.
menudrawer/src/net/simonvt/menudrawer/ColorDrawable.java