flutter 渐变色

Container(
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(5),
          gradient: LinearGradient(
            colors: [
              Color(0xffA7B3FB),
              Color(0xffF4F9FF),
              Color(0xffFFFFFF)
            ],
            begin: Alignment.topCenter,
            end: Alignment.bottomCenter,
          )
      ),