anchor.diff:  
   String txt = "";
   String txt1 = "Upload or take a picture of a bear to classify it";
  +
   void main() {
     runApp(new MaterialApp(
       debugShowCheckedModeBanner: false,
  
positive.code:           ),
          ),
        ),
        floatingActionButton: new Stack(
          children: <Widget>[
            Align(
                alignment: Alignment(1.0, 1.0),
                child: new FloatingActionButton(
                  onPressed: (){
                    image_picker(0);
                  },
                  child: new Icon(Icons.camera_alt),
                )
            ),
            Align(
                alignment: Alignment(1.0, 0.8),
                child: new FloatingActionButton(
                    onPressed: (){
                      image_picker(1);
                    },
                    child: new Icon(Icons.file_upload)
                )
            ),
          ],
        ),
      );
    }
  }
  
negative.code:         centerTitle: true,
          title: new Text("Bear Classifier"),
        ),
  
        body: new Container(
          child: Center(
            child: Column(
  