diff --git a/samples/ApiDemos/AndroidManifest.xml b/samples/ApiDemos/AndroidManifest.xml
index 55a04f052..095d7ee50 100644
--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -2168,8 +2168,8 @@
         </activity>
 
         <activity android:name=".view.Controls5"
-                  android:label="Views/Controls/5. Quantum Light Theme"
-                  android:theme="@android:style/Theme.Quantum.Light"
+                  android:label="Views/Controls/5. Material Light Theme"
+                  android:theme="@android:style/Theme.Material.Light"
                   android:enabled="@bool/atLeastLRelease">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -2178,8 +2178,8 @@
         </activity>
 
         <activity android:name=".view.Controls6"
-                  android:label="Views/Controls/6. Quantum Dark Theme"
-                  android:theme="@android:style/Theme.Quantum"
+                  android:label="Views/Controls/6. Material Dark Theme"
+                  android:theme="@android:style/Theme.Material"
                   android:enabled="@bool/atLeastLRelease">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/samples/ApiDemos/res/values-v19/styles.xml b/samples/ApiDemos/res/values-v19/styles.xml
index c0bd00ba3..cfd9cf8d9 100644
--- a/samples/ApiDemos/res/values-v19/styles.xml
+++ b/samples/ApiDemos/res/values-v19/styles.xml
@@ -15,15 +15,15 @@
 -->
 
 <resources>
-    <!-- For API level XX or later, the Quantum theme is available and we prefer that. -->
-    <style name="ThemeCurrent" parent="android:Theme.Quantum">
+    <!-- For API level XX or later, the Material theme is available and we prefer that. -->
+    <style name="ThemeCurrent" parent="android:Theme.Material">
     </style>
 
     <!-- For API level XX or later, the Holo theme is available and we prefer that. -->
-    <style name="ThemeCurrentDialog" parent="android:Theme.Quantum.Dialog">
+    <style name="ThemeCurrentDialog" parent="android:Theme.Material.Dialog">
     </style>
 
     <!-- For API level XX or later, we can use the magical DialogWhenLarge theme. -->
-    <style name="ThemeCurrentDialogWhenLarge" parent="android:style/Theme.Quantum.DialogWhenLarge">
+    <style name="ThemeCurrentDialogWhenLarge" parent="android:style/Theme.Material.DialogWhenLarge">
     </style>
 </resources>
diff --git a/samples/ApiDemos/res/values-v20/styles.xml b/samples/ApiDemos/res/values-v20/styles.xml
index e454942fb..727af0348 100644
--- a/samples/ApiDemos/res/values-v20/styles.xml
+++ b/samples/ApiDemos/res/values-v20/styles.xml
@@ -15,15 +15,15 @@
 -->
 
 <resources>
-    <!-- For API level XX or later, the Quantum theme is available and we prefer that. -->
-    <style name="ThemeCurrent" parent="android:Theme.Quantum.Light">
+    <!-- For API level XX or later, the Material theme is available and we prefer that. -->
+    <style name="ThemeCurrent" parent="android:Theme.Material.Light">
     </style>
 
     <!-- For API level XX or later, the Holo theme is available and we prefer that. -->
-    <style name="ThemeCurrentDialog" parent="android:Theme.Quantum.Light.Dialog">
+    <style name="ThemeCurrentDialog" parent="android:Theme.Material.Light.Dialog">
     </style>
 
     <!-- For API level XX or later, we can use the magical DialogWhenLarge theme. -->
-    <style name="ThemeCurrentDialogWhenLarge" parent="android:style/Theme.Quantum.Light.DialogWhenLarge">
+    <style name="ThemeCurrentDialogWhenLarge" parent="android:style/Theme.Material.Light.DialogWhenLarge">
     </style>
 </resources>
diff --git a/samples/ApiDemos/res/values/styles.xml b/samples/ApiDemos/res/values/styles.xml
index 6c63d542f..bf36ea440 100644
--- a/samples/ApiDemos/res/values/styles.xml
+++ b/samples/ApiDemos/res/values/styles.xml
@@ -24,7 +24,7 @@
          The default definition is the safe one, using a theme that has always
          been defined.  Look at values-11/styles.xml for a variation that is
          selected when the holographic theme is available, or look at
-         values-XX/styles.xml for a variation that is selected when the quantum
+         values-XX/styles.xml for a variation that is selected when the material
          theme is available. -->
     <style name="ThemeCurrent" parent="android:Theme" />
 
@@ -37,7 +37,7 @@
          The default definition is the safe one, using a theme that has always
          been defined.  Look at values-11/styles.xml for a variation that is
          selected when the holographic theme is available, or look at
-         values-XX/styles.xml for a variation that is selected when the quantum
+         values-XX/styles.xml for a variation that is selected when the material
          theme is available. -->
     <style name="ThemeCurrentDialog" parent="android:Theme.Dialog" />
 
@@ -120,7 +120,7 @@
         <item name="android:layout_height">wrap_content</item>
     </style>
 
-    <style name="ActivityTransitionTheme" parent="android:Theme.Quantum">
+    <style name="ActivityTransitionTheme" parent="android:Theme.Material">
 	<item name="android:windowEnterTransition">@transition/explode</item>
 	<item name="android:windowExitTransition">@transition/explode</item>
 	<item name="android:windowSharedElementEnterTransition">@transition/move_image</item>