diff --git a/packages/flutter/lib/src/rendering/block.dart b/packages/flutter/lib/src/rendering/block.dart
index fae0ab6358..1ee1bbfb2e 100644
--- a/packages/flutter/lib/src/rendering/block.dart
+++ b/packages/flutter/lib/src/rendering/block.dart
@@ -115,9 +115,9 @@ abstract class RenderBlockBase extends RenderBox
     assert(!size.isInfinite);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('direction: $direction');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('direction: $direction');
   }
 }
 
@@ -441,8 +441,8 @@ class RenderBlockViewport extends RenderBlockBase {
       return defaultHitTestChildren(result, position: position + new Offset(-startOffset, 0.0));
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('startOffset: $startOffset');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('startOffset: $startOffset');
   }
 }
diff --git a/packages/flutter/lib/src/rendering/box.dart b/packages/flutter/lib/src/rendering/box.dart
index 89009486b2..c261a88e5b 100644
--- a/packages/flutter/lib/src/rendering/box.dart
+++ b/packages/flutter/lib/src/rendering/box.dart
@@ -596,9 +596,9 @@ abstract class RenderBox extends RenderObject {
           node = node.parent;
         information.writeln('The nearest ancestor providing an unbounded width constraint is:');
         information.writeln('  $node');
-        List<String> settings = <String>[];
-        node.debugDescribeSettings(settings);
-        for (String line in settings)
+        List<String> description = <String>[];
+        node.debugFillDescription(description);
+        for (String line in description)
         information.writeln('  $line');
       }
       if (!constraints.hasBoundedHeight) {
@@ -607,9 +607,9 @@ abstract class RenderBox extends RenderObject {
           node = node.parent;
         information.writeln('The nearest ancestor providing an unbounded height constraint is:');
         information.writeln('  $node');
-        List<String> settings = <String>[];
-        node.debugDescribeSettings(settings);
-        for (String line in settings)
+        List<String> description = <String>[];
+        node.debugFillDescription(description);
+        for (String line in description)
         information.writeln('  $line');
       }
       throw new RenderingError(
@@ -878,9 +878,9 @@ abstract class RenderBox extends RenderObject {
     });
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('size: ${ hasSize ? size : "MISSING" }');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('size: ${ hasSize ? size : "MISSING" }');
   }
 }
 
diff --git a/packages/flutter/lib/src/rendering/child_view.dart b/packages/flutter/lib/src/rendering/child_view.dart
index f84b20ad5a..4a5520a61d 100644
--- a/packages/flutter/lib/src/rendering/child_view.dart
+++ b/packages/flutter/lib/src/rendering/child_view.dart
@@ -232,9 +232,9 @@ class RenderChildView extends RenderBox {
       context.pushChildScene(offset, _layoutInfo);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('child: $child');
-    settings.add('scale: $scale');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('child: $child');
+    description.add('scale: $scale');
   }
 }
diff --git a/packages/flutter/lib/src/rendering/flex.dart b/packages/flutter/lib/src/rendering/flex.dart
index 2db0510d9b..9ec96ea51f 100644
--- a/packages/flutter/lib/src/rendering/flex.dart
+++ b/packages/flutter/lib/src/rendering/flex.dart
@@ -590,12 +590,12 @@ class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, Fl
     return header;
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('direction: $_direction');
-    settings.add('justifyContent: $_justifyContent');
-    settings.add('alignItems: $_alignItems');
-    settings.add('textBaseline: $_textBaseline');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('direction: $_direction');
+    description.add('justifyContent: $_justifyContent');
+    description.add('alignItems: $_alignItems');
+    description.add('textBaseline: $_textBaseline');
   }
 
 }
diff --git a/packages/flutter/lib/src/rendering/image.dart b/packages/flutter/lib/src/rendering/image.dart
index 861b29274f..e4306b7a68 100644
--- a/packages/flutter/lib/src/rendering/image.dart
+++ b/packages/flutter/lib/src/rendering/image.dart
@@ -249,24 +249,24 @@ class RenderImage extends RenderBox {
     );
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('image: $image');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('image: $image');
     if (width != null)
-      settings.add('width: $width');
+      description.add('width: $width');
     if (height != null)
-      settings.add('height: $height');
+      description.add('height: $height');
     if (scale != 1.0)
-      settings.add('scale: $scale');
+      description.add('scale: $scale');
     if (color != null)
-      settings.add('color: $color');
+      description.add('color: $color');
     if (fit != null)
-      settings.add('fit: $fit');
+      description.add('fit: $fit');
     if (alignment != null)
-      settings.add('alignment: $alignment');
+      description.add('alignment: $alignment');
     if (repeat != ImageRepeat.noRepeat)
-      settings.add('repeat: $repeat');
+      description.add('repeat: $repeat');
     if (centerSlice != null)
-      settings.add('centerSlice: $centerSlice');
+      description.add('centerSlice: $centerSlice');
   }
 }
diff --git a/packages/flutter/lib/src/rendering/layer.dart b/packages/flutter/lib/src/rendering/layer.dart
index 5342d7a389..ce13588ab3 100644
--- a/packages/flutter/lib/src/rendering/layer.dart
+++ b/packages/flutter/lib/src/rendering/layer.dart
@@ -77,19 +77,19 @@ abstract class Layer {
   String toStringDeep([String prefixLineOne = '', String prefixOtherLines = '']) {
     String result = '$prefixLineOne$this\n';
     final String childrenDescription = debugDescribeChildren(prefixOtherLines);
-    final String settingsPrefix = childrenDescription != '' ? '$prefixOtherLines \u2502 ' : '$prefixOtherLines   ';
-    List<String> settings = <String>[];
-    debugDescribeSettings(settings);
-    result += settings.map((String setting) => "$settingsPrefix$setting\n").join();
+    final String descriptionPrefix = childrenDescription != '' ? '$prefixOtherLines \u2502 ' : '$prefixOtherLines   ';
+    List<String> description = <String>[];
+    debugFillDescription(description);
+    result += description.map((String description) => "$descriptionPrefix$description\n").join();
     if (childrenDescription == '')
       result += '$prefixOtherLines\n';
     result += childrenDescription;
     return result;
   }
 
-  void debugDescribeSettings(List<String> settings) {
+  void debugFillDescription(List<String> description) {
     if (debugOwner != null)
-      settings.add('owner: $debugOwner');
+      description.add('owner: $debugOwner');
   }
 
   String debugDescribeChildren(String prefix) => '';
@@ -122,12 +122,12 @@ class ChildSceneLayer extends Layer {
     );
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('offset: $offset');
-    settings.add('physicalWidth: ${layoutInfo.size.width}');
-    settings.add('physicalHeight: ${layoutInfo.size.height}');
-    settings.add('sceneToken.value: ${layoutInfo.sceneToken.value}');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('offset: $offset');
+    description.add('physicalWidth: ${layoutInfo.size.width}');
+    description.add('physicalHeight: ${layoutInfo.size.height}');
+    description.add('sceneToken.value: ${layoutInfo.sceneToken.value}');
   }
 }
 
@@ -283,9 +283,9 @@ class OffsetLayer extends ContainerLayer {
     addChildrenToScene(builder, offset + layerOffset);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('offset: $offset');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('offset: $offset');
   }
 }
 
@@ -305,9 +305,9 @@ class ClipRectLayer extends ContainerLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('clipRect: $clipRect');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('clipRect: $clipRect');
   }
 }
 
@@ -326,9 +326,9 @@ class ClipRRectLayer extends ContainerLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('clipRRect: $clipRRect');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('clipRRect: $clipRRect');
   }
 }
 
@@ -347,9 +347,9 @@ class ClipPathLayer extends ContainerLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('clipPath: $clipPath');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('clipPath: $clipPath');
   }
 }
 
@@ -368,10 +368,10 @@ class TransformLayer extends OffsetLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('transform:');
-    settings.addAll(debugDescribeTransform(transform));
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('transform:');
+    description.addAll(debugDescribeTransform(transform));
   }
 }
 
@@ -391,9 +391,9 @@ class OpacityLayer extends ContainerLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('alpha: $alpha');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('alpha: $alpha');
   }
 }
 
@@ -416,10 +416,10 @@ class ShaderMaskLayer extends ContainerLayer {
     builder.pop();
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('shader: $shader');
-    settings.add('maskRect: $maskRect');
-    settings.add('transferMode: $transferMode');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('shader: $shader');
+    description.add('maskRect: $maskRect');
+    description.add('transferMode: $transferMode');
   }
 }
diff --git a/packages/flutter/lib/src/rendering/object.dart b/packages/flutter/lib/src/rendering/object.dart
index 22d73bfb2a..b1da520086 100644
--- a/packages/flutter/lib/src/rendering/object.dart
+++ b/packages/flutter/lib/src/rendering/object.dart
@@ -1701,10 +1701,10 @@ abstract class RenderObject extends AbstractNode implements HitTestTarget {
     _debugActiveLayout = null;
     String result = '$prefixLineOne$this\n';
     final String childrenDescription = debugDescribeChildren(prefixOtherLines);
-    final String settingsPrefix = childrenDescription != '' ? '$prefixOtherLines \u2502 ' : '$prefixOtherLines   ';
-    List<String> settings = <String>[];
-    debugDescribeSettings(settings);
-    result += settings.map((String setting) => "$settingsPrefix$setting\n").join();
+    final String descriptionPrefix = childrenDescription != '' ? '$prefixOtherLines \u2502 ' : '$prefixOtherLines   ';
+    List<String> description = <String>[];
+    debugFillDescription(description);
+    result += description.map((String description) => "$descriptionPrefix$description\n").join();
     if (childrenDescription == '')
       result += '$prefixOtherLines\n';
     result += childrenDescription;
@@ -1722,9 +1722,9 @@ abstract class RenderObject extends AbstractNode implements HitTestTarget {
     _debugActiveLayout = null;
     StringBuffer result = new StringBuffer();
     result.write('$this; ');
-    List<String> settings = <String>[];
-    debugDescribeSettings(settings);
-    result.write(settings.join('; '));
+    List<String> description = <String>[];
+    debugFillDescription(description);
+    result.write(description.join('; '));
     _debugActiveLayout = debugPreviousActiveLayout;
     return result.toString();
   }
@@ -1732,11 +1732,11 @@ abstract class RenderObject extends AbstractNode implements HitTestTarget {
   /// Returns a list of strings describing the current node's fields, one field
   /// per string. Subclasses should override this to have their information
   /// included in toStringDeep().
-  void debugDescribeSettings(List<String> settings) {
+  void debugFillDescription(List<String> description) {
     if (debugOwner != null)
-      settings.add('owner: $debugOwner');
-    settings.add('parentData: $parentData');
-    settings.add('constraints: $constraints');
+      description.add('owner: $debugOwner');
+    description.add('parentData: $parentData');
+    description.add('constraints: $constraints');
   }
 
   /// Returns a string describing the current node's descendants. Each line of
diff --git a/packages/flutter/lib/src/rendering/proxy_box.dart b/packages/flutter/lib/src/rendering/proxy_box.dart
index 4544d4f4f8..072e59a18e 100644
--- a/packages/flutter/lib/src/rendering/proxy_box.dart
+++ b/packages/flutter/lib/src/rendering/proxy_box.dart
@@ -127,17 +127,17 @@ abstract class RenderProxyBoxWithHitTestBehavior extends RenderProxyBox {
 
   bool hitTestSelf(Point position) => behavior == HitTestBehavior.opaque;
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
     switch (behavior) {
       case HitTestBehavior.translucent:
-        settings.add('behavior: translucent');
+        description.add('behavior: translucent');
         break;
       case HitTestBehavior.opaque:
-        settings.add('behavior: opaque');
+        description.add('behavior: opaque');
         break;
       case HitTestBehavior.deferToChild:
-        settings.add('behavior: defer-to-child');
+        description.add('behavior: defer-to-child');
         break;
     }
   }
@@ -224,9 +224,9 @@ class RenderConstrainedBox extends RenderProxyBox {
     });
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('additionalConstraints: $additionalConstraints');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('additionalConstraints: $additionalConstraints');
   }
 }
 
@@ -339,10 +339,10 @@ class RenderFractionallySizedBox extends RenderProxyBox {
     }
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('widthFactor: ${_widthFactor ?? "pass-through"}');
-    settings.add('heightFactor: ${_heightFactor ?? "pass-through"}');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('widthFactor: ${_widthFactor ?? "pass-through"}');
+    description.add('heightFactor: ${_heightFactor ?? "pass-through"}');
   }
 }
 
@@ -410,9 +410,9 @@ class RenderAspectRatio extends RenderProxyBox {
       child.layout(new BoxConstraints.tight(size));
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('aspectRatio: $aspectRatio');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('aspectRatio: $aspectRatio');
   }
 }
 
@@ -512,10 +512,10 @@ class RenderIntrinsicWidth extends RenderProxyBox {
     }
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('stepWidth: $stepWidth');
-    settings.add('stepHeight: $stepHeight');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('stepWidth: $stepWidth');
+    description.add('stepHeight: $stepHeight');
   }
 }
 
@@ -633,9 +633,9 @@ class RenderOpacity extends RenderProxyBox {
       visitor(child);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('opacity: ${opacity.toStringAsFixed(1)}');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('opacity: ${opacity.toStringAsFixed(1)}');
   }
 }
 
@@ -940,10 +940,10 @@ class RenderDecoratedBox extends RenderProxyBox {
       _painter.paint(context.canvas, offset & size);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('decoration:');
-    settings.addAll(_decoration.toString("  ").split('\n'));
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('decoration:');
+    description.addAll(_decoration.toString("  ").split('\n'));
   }
 }
 
@@ -1099,13 +1099,13 @@ class RenderTransform extends RenderProxyBox {
     super.applyPaintTransform(child, transform);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('transform matrix:');
-    settings.addAll(debugDescribeTransform(_transform));
-    settings.add('origin: $origin');
-    settings.add('alignment: $alignment');
-    settings.add('transformHitTests: $transformHitTests');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('transform matrix:');
+    description.addAll(debugDescribeTransform(_transform));
+    description.add('origin: $origin');
+    description.add('alignment: $alignment');
+    description.add('transformHitTests: $transformHitTests');
   }
 }
 
@@ -1160,10 +1160,10 @@ class RenderFractionalTranslation extends RenderProxyBox {
     super.applyPaintTransform(child, transform);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('translation: $translation');
-    settings.add('transformHitTests: $transformHitTests');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('translation: $translation');
+    description.add('transformHitTests: $transformHitTests');
   }
 }
 
@@ -1344,8 +1344,8 @@ class RenderPointerListener extends RenderProxyBoxWithHitTestBehavior {
       return onPointerCancel(event);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
     List<String> listeners = <String>[];
     if (onPointerDown != null)
       listeners.add('down');
@@ -1357,7 +1357,7 @@ class RenderPointerListener extends RenderProxyBoxWithHitTestBehavior {
       listeners.add('cancel');
     if (listeners.isEmpty)
       listeners.add('<none>');
-    settings.add('listeners: ${listeners.join(", ")}');
+    description.add('listeners: ${listeners.join(", ")}');
   }
 }
 
@@ -1430,10 +1430,10 @@ class RenderIgnorePointer extends RenderProxyBox {
       visitor(child);
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('ignoring: $ignoring');
-    settings.add('ignoringSemantics: ${ ignoringSemantics == null ? "implicitly " : "" }$_effectiveIgnoringSemantics');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('ignoring: $ignoring');
+    description.add('ignoringSemantics: ${ ignoringSemantics == null ? "implicitly " : "" }$_effectiveIgnoringSemantics');
   }
 }
 
@@ -1448,9 +1448,9 @@ class RenderMetaData extends RenderProxyBoxWithHitTestBehavior {
   /// Opaque meta data ignored by the render tree
   dynamic metaData;
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('metaData: $metaData');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('metaData: $metaData');
   }
 }
 
diff --git a/packages/flutter/lib/src/rendering/shifted_box.dart b/packages/flutter/lib/src/rendering/shifted_box.dart
index 0718aed7a0..1eadc59175 100644
--- a/packages/flutter/lib/src/rendering/shifted_box.dart
+++ b/packages/flutter/lib/src/rendering/shifted_box.dart
@@ -198,9 +198,9 @@ class RenderPadding extends RenderShiftedBox {
     });
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('padding: $padding');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('padding: $padding');
   }
 }
 
@@ -347,9 +347,9 @@ class RenderPositionedBox extends RenderShiftedBox {
     });
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('alignment: $alignment');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('alignment: $alignment');
   }
 }
 
@@ -495,13 +495,13 @@ class RenderOverflowBox extends RenderShiftedBox {
     }
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('minWidth: ${minWidth ?? "use parent minWidth constraint"}');
-    settings.add('maxWidth: ${maxWidth ?? "use parent maxWidth constraint"}');
-    settings.add('minHeight: ${minHeight ?? "use parent minHeight constraint"}');
-    settings.add('maxHeight: ${maxHeight ?? "use parent maxHeight constraint"}');
-    settings.add('alignment: $alignment');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('minWidth: ${minWidth ?? "use parent minWidth constraint"}');
+    description.add('maxWidth: ${maxWidth ?? "use parent maxWidth constraint"}');
+    description.add('minHeight: ${minHeight ?? "use parent minHeight constraint"}');
+    description.add('maxHeight: ${maxHeight ?? "use parent maxHeight constraint"}');
+    description.add('alignment: $alignment');
   }
 }
 
@@ -636,9 +636,9 @@ class RenderBaseline extends RenderShiftedBox {
     }
   }
 
-  void debugDescribeSettings(List<String> settings) {
-    super.debugDescribeSettings(settings);
-    settings.add('baseline: $baseline');
-    settings.add('baselineType: $baselineType');
+  void debugFillDescription(List<String> description) {
+    super.debugFillDescription(description);
+    description.add('baseline: $baseline');
+    description.add('baselineType: $baselineType');
   }
 }
diff --git a/packages/flutter/lib/src/rendering/view.dart b/packages/flutter/lib/src/rendering/view.dart
index f87d46b0e4..826caedbbb 100644
--- a/packages/flutter/lib/src/rendering/view.dart
+++ b/packages/flutter/lib/src/rendering/view.dart
@@ -142,10 +142,10 @@ class RenderView extends RenderObject with RenderObjectWithChildMixin<RenderBox>
   Rect get paintBounds => Point.origin & size;
   Rect get semanticBounds => Point.origin & size;
 
-  void debugDescribeSettings(List<String> settings) {
-    // call to ${super.debugDescribeSettings(prefix)} is omitted because the root superclasses don't include any interesting information for this class
-    settings.add('window size: ${ui.window.size} (in device pixels)');
-    settings.add('device pixel ratio: ${ui.window.devicePixelRatio} (device pixels per logical pixel)');
-    settings.add('configuration: $configuration (in logical pixels)');
+  void debugFillDescription(List<String> description) {
+    // call to ${super.debugFillDescription(prefix)} is omitted because the root superclasses don't include any interesting information for this class
+    description.add('window size: ${ui.window.size} (in device pixels)');
+    description.add('device pixel ratio: ${ui.window.devicePixelRatio} (device pixels per logical pixel)');
+    description.add('configuration: $configuration (in logical pixels)');
   }
 }