Flutter Widget - BoxDecoration

new BoxDecoration(backgroundBlendMode:BlendMode.color,BlendMode.colorBurn ,BlendMode.colorDodge ,BlendMode.darken ,BlendMode.difference,BlendMode.dst ,BlendMode.dstATop,BlendMode.dstIn ,BlendMode.dstOut ,BlendMode.dstOver ,BlendMode.exclusion ,BlendMode.hardLight ,BlendMode.hue ,BlendMode.lighten ,BlendMode.luminosity ,BlendMode.modulate ,BlendMode.multiply ,BlendMode.overlay ,BlendMode.plus ,BlendMode.saturation,BlendMode.screen ,BlendMode.softLight ,BlendMode.src ,BlendMode.srcATop ,BlendMode.srcIn ,BlendMode.srcOut ,BlendMode.srcOver ,BlendMode.values ,BlendMode.xor border :Border.all(  color: Colors.black,  width: 8,  style: BorderStyle.solid),border: Border(  top: BorderSide(width: 1.0, color: Color(0xFFFFFFFFFF),style: BorderStyle.solid),  left: BorderSide(width: 1.0, color: Color(0xFFFFFFFFFF),style: BorderStyle.solid),  right: BorderSide(width: 1.0, color: Color(0xFFFF000000),style: BorderStyle.solid),  bottom: BorderSide(width: 1.0, color: Color(0xFFFF000000),style: BorderStyle.solid),)borderRadius:BorderRadius.circular(12),BorderRadius.only(    topLeft: Radius.circular(75),    bottomRight: Radius.circular(75),)boxShadow: List<BoxShadow>BoxShadow(    color: Colors.grey.withOpacity(.5),    blurRadius: 20.0, // soften the shadow    spreadRadius: 0.0, //extend the shadow    offset: Offset(      5.0, // Move to right 10  horizontally      5.0, // Move to bottom 10 Vertically    )}color:Color(0xFF42A5F5)Color.fromARGB(255, 66, 165, 245)Color.fromRGBO(66, 165, 245, 1.0)gradient LinearGradient(  begin: Alignment.topRight,  end: Alignment.bottomLeft,  colors: [Colors.blue, Colors.red])),Gradient.radial(    Offset center,    double radius,    List<Color> colors,    [List<double> colorStops,    TileMode tileMode = TileMode.clamp,    Float64List matrix4,    Offset focal,    double focalRadius = 0.0]),    Gradient.sweep(    Offset center,    List<Color> colors,    [List<double> colorStops,    TileMode tileMode = TileMode.clamp,    double startAngle = 0.0,    double endAngle = math.pi * 2,    Float64List matrix4])image:DecorationImage(fit: BoxFit.fitWidth,image: AssetImage('assets/img/pic.jpg'))padding :EdgeInsets.only(top: 20.0,left: 20.0,right: 20.0,bottom: 0.0)EdgeInsets.all(8.0)shape:BoxShape.circle,rectangle.circle)