Some values return null when exporting

[mike-gallego]

Hello, I really like this package and was wondering if I am exporting correctly, because I keep getting null values on some properties. Am I supposed to add a parser before I export or is exporting using DynamicWidgetJsonExportor the best way? And also some properties are not being caught, such as decoration, which I need to provide a background in the container.

Widget:

Container(
                height: 200,
                margin: EdgeInsets.symmetric(horizontal: 15.0),
                decoration: BoxDecoration(
                  borderRadius: BorderRadius.all(Radius.circular(20.0)),
                  image: DecorationImage(
                    image: AssetImage('assets/weather/clear-day/bg.jpg'),
                    colorFilter: ColorFilter.mode(
                        Colors.black.withOpacity(0.75), BlendMode.dstATop),
                    fit: BoxFit.cover,
                  ),
                ),
                child: Stack(
                  children: [
                    Align(
                      alignment: Alignment.topLeft,
                      child: IconButton(
                        onPressed: () => debugPrint('testing'),
                        icon: Icon(Icons.ac_unit),
                      ),
                    ),
                    Align(
                      alignment: Alignment.topRight,
                      child: IconButton(
                        onPressed: () => debugPrint('testing2'),
                        icon: Icon(Icons.access_alarm),
                      ),
                    ),
                  ],
                ),)

exported Json from widget above:

{
    "type": "Container",
    "alignment": null,
    "padding": null,
    "color": null,
    "margin": "15.0,0.0,15.0,0.0",
    "constraints": {
        "minWidth": 0.0,
        "maxWidth": 9999999999.0,
        "minHeight": 200.0,
        "maxHeight": 200.0
    },
    "child": {
        "type": "Stack",
        "alignment": "topStart",
        "textDirection": "ltr",
        "fit": "loose",
        "clipBehavior": "hardEdge",
        "children": [
            {
                "type": "Align",
                "alignment": "topLeft",
                "widthFactor": null,
                "heightFactor": null,
                "child": null
            },
            {
                "type": "Align",
                "alignment": "topRight",
                "widthFactor": null,
                "heightFactor": null,
                "child": null
            }
        ]
    }
}

As you can see, decoration is not being exported, and also my iconbuttons in the stack are all null. Any reason for this?

[dengyin2000]

decoration property is not exported, and "null" is the default value for alignment