DART

ElevatedButton flutter style

ElevatedButton(
  style: ElevatedButton.styleFrom(
  onPrimary: Colors.black87,
  primary: Colors.grey[300],
  minimumSize: Size(88, 36),
  padding: EdgeInsets.symmetric(horizontal: 16),
  shape: ElevatedButton.styleFrom(
    primary: ThemeColors.darkBg,
    shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10.0), side: BorderSide(color: Colors.black)),
    ),
  onPressed: () { },
  child: Text('Looks like a RaisedButton'),
)

ElevatedButton background flutter

ElevatedButton(
  style: ElevatedButton.styleFrom(
    primary: Theme.of(context).secondaryHeaderColor,
  ),
  onPressed: () { },
),

flutter elevatedbutton

ElevatedButton(
              child: Text('ElevatedButton'),
              onPressed: () {},
            ),