Add disabledThumbColor and other properties from Switch to SwitchListTile final (#22823)

* added missing properties

packages/flutter/lib/src/material/switch_list_tile.dart

@@ -74,6 +74,9 @@ class SwitchListTile extends StatelessWidget {
     @required this.value,
     @required this.onChanged,
     this.activeColor,
+    this.activeTrackColor,
+    this.inactiveThumbColor,
+    this.inactiveTrackColor,
     this.activeThumbImage,
     this.inactiveThumbImage,
     this.title,
@@ -123,6 +126,21 @@ class SwitchListTile extends StatelessWidget {
   /// Defaults to accent color of the current [Theme].
   final Color activeColor;
 
+  /// The color to use on the track when this switch is on.
+  ///
+  /// Defaults to [ThemeData.toggleableActiveColor] with the opacity set at 50%.
+  final Color activeTrackColor;
+
+  /// The color to use on the thumb when this switch is off.
+  ///
+  /// Defaults to the colors described in the Material design specification.
+  final Color inactiveThumbColor;
+
+  /// The color to use on the track when this switch is off.
+  ///
+  /// Defaults to the colors described in the Material design specification.
+  final Color inactiveTrackColor;
+
   /// An image to use on the thumb of this switch when the switch is on.
   final ImageProvider activeThumbImage;
 
@@ -173,6 +191,9 @@ class SwitchListTile extends StatelessWidget {
       activeThumbImage: activeThumbImage,
       inactiveThumbImage: inactiveThumbImage,
       materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
+      activeTrackColor: activeTrackColor,
+      inactiveTrackColor: inactiveTrackColor,
+      inactiveThumbColor: inactiveThumbColor,
     );
     return MergeSemantics(
       child: ListTileTheme.merge(

packages/flutter/test/material/switch_list_tile_test.dart

+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import '../rendering/mock_canvas.dart';
+
+void main() {
+  testWidgets('SwitchListTile has the right colors', (WidgetTester tester) async {
+    bool value = false;
+    await tester.pumpWidget(
+      MediaQuery(
+        data: const MediaQueryData(padding: EdgeInsets.all(8.0)),
+        child: Directionality(
+        textDirection: TextDirection.ltr,
+        child:
+          StatefulBuilder(
+            builder: (BuildContext context, StateSetter setState) {
+              return Material(
+                child: SwitchListTile(
+                  value: value,
+                  onChanged: (bool newValue) {
+                    setState(() { value = newValue; });
+                  },
+                  activeColor: Colors.red[500],
+                  activeTrackColor: Colors.green[500],
+                  inactiveThumbColor: Colors.yellow[500],
+                  inactiveTrackColor: Colors.blue[500],
+                ),
+              );
+            },
+          ),
+        ),
+      ),
+    );
+
+    expect(
+      find.byType(Switch),
+      paints
+        ..rrect(color: Colors.blue[500])
+        ..circle(color: const Color(0x33000000))
+        ..circle(color: const Color(0x24000000))
+        ..circle(color: const Color(0x1f000000))
+        ..circle(color: Colors.yellow[500])
+    );
+
+    await tester.tap(find.byType(Switch));
+    await tester.pumpAndSettle();
+
+    expect(
+      Material.of(tester.element(find.byType(Switch))),
+      paints
+        ..rrect(color: Colors.green[500])
+        ..circle(color: const Color(0x33000000))
+        ..circle(color: const Color(0x24000000))
+        ..circle(color: const Color(0x1f000000))
+        ..circle(color: Colors.red[500])
+    );
+  });
+}