anchor.diff:          trailing = control;
           break;
       }
  -
       return MergeSemantics(
  -      child: ListTile(
  -        leading: leading,
  -        title: title,
  -        subtitle: subtitle,
  -        trailing: trailing,
  -        isThreeLine: isThreeLine,
  -        dense: dense,
  -        enabled: onChanged != null,
  -        onTap: onChanged != null ? _handleValueChange : null,
  -        selected: selected,
  -        autofocus: autofocus,
  -        contentPadding: contentPadding,
  -        shape: shape,
  -        selectedTileColor: selectedTileColor,
  -        tileColor: tileColor,
  +      child: ListTileTheme.merge(
  +        selectedColor: activeColor ?? Theme.of(context).accentColor,
  +        child: ListTile(
  +          leading: leading,
  +          title: title,
  +          subtitle: subtitle,
  +          trailing: trailing,
  +          isThreeLine: isThreeLine,
  +          dense: dense,
  +          enabled: onChanged != null,
  +          onTap: onChanged != null ? _handleValueChange : null,
  +          selected: selected,
  +          autofocus: autofocus,
  +          contentPadding: contentPadding,
  +          shape: shape,
  +          selectedTileColor: selectedTileColor,
  +          tileColor: tileColor,
  +        ),
         ),
       );
     }
  
positive.code: /// those of the same name on [ListTile].
  ///
  /// The [selected] property on this widget is similar to the [ListTile.selected]
  /// property, but the color used is [activeColor], if it's non-null.
  /// No effort is made to coordinate the [selected] state and the
  /// [value] state; to have the list tile appear selected when the
  /// checkbox is checked, pass the same value to both.
  ///
  /// The checkbox is shown on the right by default in left-to-right languages
  /// (i.e. the trailing edge). This can be changed using [controlAffinity]. The
  
negative.code: 
    /// The color to use when this checkbox is checked.
    ///
    /// Defaults to accent color of the current [Theme].
    final Color? activeColor;
  
    /// The color to use for the check icon when this checkbox is checked.
  