Widget _compareColor() => Column(
        children: <Widget>[
          SizedBox(height: 30),
          RaisedButton(
            onPressed: () {
              print("click");
            },
            child: Text(
              "textTheme: accent\ntextColor: BLUE\ncolorBrightness:light",
              style: TextStyle(
                fontSize: 40,
              ),
            ),
            color: BLUE_LIGHT,
            textTheme: ButtonTextTheme.accent,
            textColor: Colors.white,
            colorBrightness: Brightness.light,
          )
        ],
      );