círculo alrededor de icono de flutter
CircleAvatar(
backgroundColor: Colors.white,
radius: 30,
child: Icon(Icons.add),
),
Botón redondo con el texto y el icono en flutter
OutlinedButton.icon(
icon: Icon(Icons.home),
onPressed: (){},
label: Text('OutlinedButton'),
style: OutlinedButton.styleFrom(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20.0))
)
),