1. backgroundColor : It is used to set the specified colour in the background of any material widget. Type: Color Example: backgroundColor: Colors.white backgroundColor: Colors.indigoAccent.shade400 2. borderRadius : The corners of the box are rounded by this BorderRadius.It applies only to boxes with rectangular shapes; ignored if the shape is not BoxShape.rectangle. Type: BorderRadiusGeometry Example: borderRadius: BorderRadius.circular(8.0) 3. border : A border to draw above the background color, gradient, or image. Type: BoxBorder Example: border: Border.all(color: Colors.grey,width: 4,style: BorderStyle.solid)