,
      tooltip: 'physical pixels per logical pixel',
    ));

    // Displaying the depth value would be distracting. Instead only display
    // if the depth value is missing.
    properties.add(ObjectFlagProperty&lt;int&gt;('depth', depth, ifNull: 'no depth'));

    // bool flag that is only shown when the value is true.
    properties.add(FlagProperty('using primary controller', value: primary));

    properties.add(FlagProperty(
      'isCurrent',
      value: isCurrent,
      ifTrue: 'active',
      i