build method

Widget build()

Implementation

Widget build() {
  return Positioned(
    left: _positionX.value,
    top: _positionY.value,
    child: Opacity(
      opacity: _opacity.value,
      child: Container(
        width: _size.value,
        height: _size.value,
        decoration: BoxDecoration(
          color: color,
          shape: BoxShape.circle,
        ),
      ),
    ),
  );
}