anchor.diff:                  subtitle:
                       Text(_model.rtl ? 'هذا عنوان فرعي مناسب.' : 'This is an appropriate subtitle.'),
                   dense: true,
  -                leading: Icon(Icons.add_box),
  -                trailing: Icon(Icons.check_box),
  +                leading: const Icon(Icons.add_box),
  +                trailing: const Icon(Icons.check_box),
                   onTap: () {},
                 ),
                 ListTile(
  
positive.code:                 title: Text(_model.rtl ? 'هذا عنوان قصير' : 'This is a short title'),
                  subtitle:
                      Text(_model.rtl ? 'هذا عنوان فرعي مناسب.' : 'This is an appropriate subtitle.'),
                  trailing: Icon(Icons.check_box),
                  onTap: () {},
                ),
                ListTile(
                  title: Text(_model.rtl ? 'هذا عنوان قصير' : 'This is a short title'),
                  subtitle:
                      Text(_model.rtl ? 'هذا عنوان فرعي مناسب.' : 'This is an appropriate subtitle.'),
                  leading: Icon(Icons.check_box),
                  dense: true,
                  onTap: () {},
                ),
  
negative.code:                 subtitle:
                      Text(_model.rtl ? 'هذا عنوان فرعي مناسب.' : 'This is an appropriate subtitle.'),
                  isThreeLine: true,
                  leading: const Icon(Icons.add_box),
                  trailing: const Icon(Icons.check_box),
                  onTap: () {},
                ),
              ],
  