dropdown decoration flutter
DropdownButtonFormField(
decoration: InputDecoration(
border: OutlineInputBorder(
borderRadius: const BorderRadius.all(
const Radius.circular(30.0),
),
),
filled: true,
hintStyle: TextStyle(color: Colors.grey[800]),
hintText: "Name",
fillColor: Colors.blue[200]
),
items: <your items>,
value: <your value>
)