diff --git a/core/java/android/preference/Preference.java b/core/java/android/preference/Preference.java
index 7d37e5bdf11d1..1584424a66240 100644
--- a/core/java/android/preference/Preference.java
+++ b/core/java/android/preference/Preference.java
@@ -519,6 +519,7 @@ public class Preference implements Comparable<Preference>, OnDependencyChangeLis
             if (mIcon != null) {
                 imageView.setImageDrawable(mIcon);
             }
+            imageView.setVisibility(mIcon != null ? View.VISIBLE : View.GONE);
         }
         if (mShouldDisableView) {
             setEnabledStateOnViews(view, isEnabled());
@@ -618,6 +619,7 @@ public class Preference implements Comparable<Preference>, OnDependencyChangeLis
     public void setIcon(Drawable icon) {
         if ((icon == null && mIcon != null) || (icon != null && mIcon != icon)) {
             mIcon = icon;
+
             notifyChanged();
         }
     }
diff --git a/core/java/android/preference/PreferenceActivity.java b/core/java/android/preference/PreferenceActivity.java
index ad0bc84a40817..8535bd46116dd 100644
--- a/core/java/android/preference/PreferenceActivity.java
+++ b/core/java/android/preference/PreferenceActivity.java
@@ -18,9 +18,6 @@ package android.preference;
 
 import com.android.internal.util.XmlUtils;
 
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-
 import android.app.ActionBar;
 import android.app.Fragment;
 import android.app.FragmentBreadCrumbs;
@@ -44,8 +41,8 @@ import android.util.TypedValue;
 import android.util.Xml;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.View.OnClickListener;
 import android.view.ViewGroup;
+import android.view.View.OnClickListener;
 import android.widget.AbsListView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
@@ -58,6 +55,9 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
 /**
  * This is the base class for an activity to show a hierarchy of preferences
  * to the user.  Prior to {@link android.os.Build.VERSION_CODES#HONEYCOMB}
@@ -641,17 +641,9 @@ public abstract class PreferenceActivity extends ListActivity implements
      * enough.
      */
     public boolean onIsMultiPane() {
-        Configuration config = getResources().getConfiguration();
-        if ((config.screenLayout&Configuration.SCREENLAYOUT_SIZE_MASK)
-                == Configuration.SCREENLAYOUT_SIZE_XLARGE) {
-            return true;
-        }
-        if ((config.screenLayout&Configuration.SCREENLAYOUT_SIZE_MASK)
-                == Configuration.SCREENLAYOUT_SIZE_LARGE
-                && config.orientation == Configuration.ORIENTATION_LANDSCAPE) {
-            return true;
-        }
-        return false;
+        boolean preferMultiPane = getResources().getBoolean(
+                com.android.internal.R.bool.preferences_prefer_dual_pane);
+        return preferMultiPane;
     }
 
     /**
@@ -992,7 +984,7 @@ public abstract class PreferenceActivity extends ListActivity implements
         if (mFragmentBreadCrumbs == null) {
             View crumbs = findViewById(android.R.id.title);
             // For screens with a different kind of title, don't create breadcrumbs.
-            if (!(crumbs instanceof FragmentBreadCrumbs)) return;
+            if (crumbs != null && !(crumbs instanceof FragmentBreadCrumbs)) return;
             mFragmentBreadCrumbs = (FragmentBreadCrumbs) findViewById(android.R.id.title);
             if (mFragmentBreadCrumbs == null) {
                 mFragmentBreadCrumbs = new FragmentBreadCrumbs(this);
diff --git a/core/res/res/layout-xlarge/preference_list_content_single.xml b/core/res/res/layout-w600dp/preference_list_content_single.xml
similarity index 100%
rename from core/res/res/layout-xlarge/preference_list_content_single.xml
rename to core/res/res/layout-w600dp/preference_list_content_single.xml
diff --git a/core/res/res/layout-xlarge/breadcrumbs_in_fragment.xml b/core/res/res/layout-xlarge/breadcrumbs_in_fragment.xml
new file mode 100644
index 0000000000000..9b814970f2565
--- /dev/null
+++ b/core/res/res/layout-xlarge/breadcrumbs_in_fragment.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+  
+          http://www.apache.org/licenses/LICENSE-2.0
+  
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:orientation="vertical"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+    <android.app.FragmentBreadCrumbs
+            android:id="@android:id/title"
+            android:layout_height="72dip"
+            android:layout_width="match_parent"
+            android:paddingTop="16dip"
+            android:paddingBottom="8dip"
+            android:gravity="center_vertical|left"
+            android:layout_marginLeft="@dimen/preference_breadcrumb_paddingLeft"
+            android:layout_marginRight="@dimen/preference_breadcrumb_paddingRight"
+        />
+
+    <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="1dip"
+            android:paddingLeft="@dimen/preference_breadcrumb_paddingLeft"
+            android:paddingRight="@dimen/preference_breadcrumb_paddingRight"
+            android:src="#404040"
+        />
+</LinearLayout>
\ No newline at end of file
diff --git a/core/res/res/layout/breadcrumbs_in_fragment.xml b/core/res/res/layout/breadcrumbs_in_fragment.xml
new file mode 100644
index 0000000000000..98fffb7c429ea
--- /dev/null
+++ b/core/res/res/layout/breadcrumbs_in_fragment.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+  
+          http://www.apache.org/licenses/LICENSE-2.0
+  
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<!-- This layout disables breadcrumbs in the fragment area and causes PreferenceActivity to
+    put the breadcrumbs in the action bar. -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:orientation="vertical"
+        android:layout_height="@dimen/preference_fragment_padding_side"
+        android:layout_width="match_parent">
+</LinearLayout>
\ No newline at end of file
diff --git a/core/res/res/layout/preference_category_holo.xml b/core/res/res/layout/preference_category_holo.xml
index 5fe8b28f18bcf..a4e20d2fd3dac 100644
--- a/core/res/res/layout/preference_category_holo.xml
+++ b/core/res/res/layout/preference_category_holo.xml
@@ -18,5 +18,5 @@
 <TextView xmlns:android="http://schemas.android.com/apk/res/android"
     style="?android:attr/listSeparatorTextViewStyle"
     android:id="@+android:id/title"
-    android:paddingLeft="32dp"
+    android:paddingLeft="16dp"
 />
diff --git a/core/res/res/layout/preference_child_holo.xml b/core/res/res/layout/preference_child_holo.xml
index 2e70d77cdc03e..06c846bd00a55 100644
--- a/core/res/res/layout/preference_child_holo.xml
+++ b/core/res/res/layout/preference_child_holo.xml
@@ -26,7 +26,7 @@
     <LinearLayout
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:minWidth="@dimen/preference_widget_width"
+        android:minWidth="@dimen/preference_icon_minWidth"
         android:gravity="center"
         android:orientation="horizontal">
         <ImageView
@@ -40,6 +40,7 @@
     <RelativeLayout
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginLeft="32dip"
         android:layout_marginRight="6dip"
         android:layout_marginTop="6dip"
         android:layout_marginBottom="6dip"
diff --git a/core/res/res/layout/preference_holo.xml b/core/res/res/layout/preference_holo.xml
index c448f6432784f..8b1b02734eb69 100644
--- a/core/res/res/layout/preference_holo.xml
+++ b/core/res/res/layout/preference_holo.xml
@@ -27,8 +27,8 @@
     <LinearLayout
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:minWidth="@dimen/preference_widget_width"
         android:gravity="center"
+        android:minWidth="@dimen/preference_icon_minWidth"
         android:orientation="horizontal">
         <ImageView
             android:id="@+android:id/icon"
@@ -41,7 +41,8 @@
     <RelativeLayout
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginRight="6dip"
+        android:layout_marginLeft="16dip"
+        android:layout_marginRight="8dip"
         android:layout_marginTop="6dip"
         android:layout_marginBottom="6dip"
         android:layout_weight="1">
diff --git a/core/res/res/layout/preference_information_holo.xml b/core/res/res/layout/preference_information_holo.xml
index d6cc063efa3e3..d15cd7b26d800 100644
--- a/core/res/res/layout/preference_information_holo.xml
+++ b/core/res/res/layout/preference_information_holo.xml
@@ -24,13 +24,24 @@
     android:gravity="center_vertical"
     android:paddingRight="?android:attr/scrollbarSize">
 
-    <View
-        android:layout_width="@dimen/preference_widget_width"
-        android:layout_height="match_parent" />
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:minWidth="@dimen/preference_icon_minWidth"
+        android:gravity="center"
+        android:orientation="horizontal">
+        <ImageView
+            android:id="@+android:id/icon"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            />
+    </LinearLayout>
 
     <RelativeLayout
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginLeft="16dip"
         android:layout_marginRight="6sp"
         android:layout_marginTop="6sp"
         android:layout_marginBottom="6sp"
diff --git a/core/res/res/layout/preference_list_content.xml b/core/res/res/layout/preference_list_content.xml
index 5d034a5a6a1c4..5a345c6c1a2db 100644
--- a/core/res/res/layout/preference_list_content.xml
+++ b/core/res/res/layout/preference_list_content.xml
@@ -27,6 +27,8 @@
         android:orientation="horizontal"
         android:layout_width="match_parent"
         android:layout_height="0px"
+        android:layout_marginTop="@dimen/preference_screen_top_margin"
+        android:layout_marginBottom="@dimen/preference_screen_bottom_margin"
         android:layout_weight="1">
 
         <LinearLayout
@@ -36,14 +38,15 @@
             android:layout_height="match_parent"
             android:layout_marginRight="@dimen/preference_screen_side_margin_negative"
             android:layout_marginLeft="@dimen/preference_screen_side_margin"
-            android:layout_marginTop="32dp"
-            android:layout_marginBottom="32dp"
-            android:layout_weight="10">
+            android:layout_weight="@integer/preferences_left_pane_weight">
 
             <ListView android:id="@android:id/list"
                 android:layout_width="match_parent"
                 android:layout_height="0px"
                 android:layout_weight="1"
+                android:paddingTop="16dp"
+                android:paddingBottom="16dp"
+
                 android:drawSelectorOnTop="false"
                 android:cacheColorHint="@android:color/transparent"
                 android:listPreferredItemHeight="48dp"
@@ -60,39 +63,22 @@
                 android:id="@+id/prefs_frame"
                 android:layout_width="0px"
                 android:layout_height="match_parent"
-                android:layout_weight="20"
+                android:layout_weight="@integer/preferences_right_pane_weight"
                 android:layout_marginLeft="@dimen/preference_screen_side_margin"
                 android:layout_marginRight="@dimen/preference_screen_side_margin"
-                android:layout_marginTop="16dp"
-                android:layout_marginBottom="16dp"
                 android:background="?attr/detailsElementBackground"
                 android:orientation="vertical"
                 android:visibility="gone" >
 
-            <!-- Breadcrumb inserted here -->
-            <android.app.FragmentBreadCrumbs
-                android:id="@android:id/title"
-                android:layout_height="72dip"
-                android:layout_width="match_parent"
-                android:paddingTop="16dip"
-                android:paddingBottom="8dip"
-                android:gravity="center_vertical|left"
-                android:layout_marginLeft="48dip"
-                android:layout_marginRight="48dip"
-                />
+            <!-- Breadcrumb inserted here, in certain screen sizes. In others, it will be an
+                empty layout or just padding, and PreferenceActivity will put the breadcrumbs in
+                the action bar. -->
+            <include layout="@layout/breadcrumbs_in_fragment" />
 
-            <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="1dip"
-                    android:paddingLeft="32dip"
-                    android:paddingRight="32dip"
-                    android:src="#404040"
-                />
             <android.preference.PreferenceFrameLayout android:id="@+id/prefs"
                     android:layout_width="match_parent"
                     android:layout_height="0dip"
                     android:layout_weight="1"
-                    android:layout_marginTop="-1dip"
                 />
         </LinearLayout>
     </LinearLayout>
diff --git a/core/res/res/layout/preference_list_fragment.xml b/core/res/res/layout/preference_list_fragment.xml
index 393cecf894b48..986536e498378 100644
--- a/core/res/res/layout/preference_list_fragment.xml
+++ b/core/res/res/layout/preference_list_fragment.xml
@@ -29,9 +29,9 @@
         android:layout_height="0px"
         android:layout_weight="1"
         android:paddingTop="0dip"
-        android:paddingBottom="48dip"
-        android:paddingLeft="32dip"
-        android:paddingRight="32dip"
+        android:paddingBottom="@dimen/preference_fragment_padding_bottom"
+        android:paddingLeft="@dimen/preference_fragment_padding_side"
+        android:paddingRight="@dimen/preference_fragment_padding_side"
         android:clipToPadding="false"
         android:drawSelectorOnTop="false"
         android:cacheColorHint="@android:color/transparent"
diff --git a/core/res/res/layout/search_view.xml b/core/res/res/layout/search_view.xml
index face8b2857e28..99fdf5b3e9972 100644
--- a/core/res/res/layout/search_view.xml
+++ b/core/res/res/layout/search_view.xml
@@ -33,8 +33,8 @@
         android:layout_gravity="center_vertical"
         android:layout_marginBottom="2dip"
         android:drawablePadding="0dip"
-        android:textAppearance="?android:attr/textAppearanceSmall"
-        android:textColor="?android:attr/textColorPrimaryInverse"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textColor="?android:attr/textColorPrimary"
         android:visibility="gone"
     />
 
diff --git a/core/res/res/values-h720dp/dimens.xml b/core/res/res/values-h720dp/dimens.xml
index 7f4394619c300..c09cb5bd33a66 100644
--- a/core/res/res/values-h720dp/dimens.xml
+++ b/core/res/res/values-h720dp/dimens.xml
@@ -21,4 +21,10 @@
     <dimen name="alert_dialog_title_height">54dip</dimen>
     <!-- Dialog button bar height -->
     <dimen name="alert_dialog_button_bar_height">54dip</dimen>
+    <!-- Preference fragment padding, bottom -->
+    <dimen name="preference_fragment_padding_bottom">16dp</dimen>
+    <!-- Preference activity top margin -->
+    <dimen name="preference_screen_top_margin">16dp</dimen>
+    <!-- Preference activity bottom margin -->
+    <dimen name="preference_screen_bottom_margin">16dp</dimen>
 </resources>
diff --git a/core/res/res/values-land/dimens.xml b/core/res/res/values-land/dimens.xml
index fbfc3bf6d1296..b0a11a6724d2a 100644
--- a/core/res/res/values-land/dimens.xml
+++ b/core/res/res/values-land/dimens.xml
@@ -21,7 +21,7 @@
 <resources>
     <dimen name="password_keyboard_key_height">47dip</dimen>
     <dimen name="password_keyboard_spacebar_vertical_correction">2dip</dimen>
-    <dimen name="preference_screen_side_margin">96dp</dimen>
-    <dimen name="preference_screen_side_margin_negative">-100dp</dimen>
+    <dimen name="preference_screen_side_margin">16dp</dimen>
+    <dimen name="preference_screen_side_margin_negative">-20dp</dimen>
     <dimen name="preference_widget_width">72dp</dimen>
 </resources>
diff --git a/core/res/res/values-large/styles.xml b/core/res/res/values-large/styles.xml
new file mode 100644
index 0000000000000..79b524db0d623
--- /dev/null
+++ b/core/res/res/values-large/styles.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+  
+          http://www.apache.org/licenses/LICENSE-2.0
+  
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <style name="PreferencePanel">
+        <item name="android:layout_marginLeft">@dimen/preference_screen_side_margin</item>
+        <item name="android:layout_marginRight">@dimen/preference_screen_side_margin</item>
+        <item name="android:layout_marginTop">48dip</item>
+        <item name="android:layout_marginBottom">48dip</item>
+        <item name="android:background">?attr/detailsElementBackground</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/core/res/res/values-sw600dp/bools.xml b/core/res/res/values-sw600dp/bools.xml
new file mode 100644
index 0000000000000..734031f2d93bc
--- /dev/null
+++ b/core/res/res/values-sw600dp/bools.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <bool name="preferences_prefer_dual_pane">true</bool>
+</resources>
diff --git a/core/res/res/values-w1280dp/dimens.xml b/core/res/res/values-w1280dp/dimens.xml
new file mode 100644
index 0000000000000..e67b3a9596bcb
--- /dev/null
+++ b/core/res/res/values-w1280dp/dimens.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2011, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+<resources>
+    <dimen name="preference_screen_side_margin">96dp</dimen>
+    <dimen name="preference_screen_side_margin_negative">-100dp</dimen>
+    <dimen name="preference_widget_width">64dp</dimen>
+    <!-- Preference fragment padding, bottom -->
+    <dimen name="preference_fragment_padding_bottom">48dp</dimen>
+    <!-- Preference fragment padding, sides -->
+    <dimen name="preference_fragment_padding_side">48dp</dimen>
+    <!-- Padding to the left of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingLeft">48dp</dimen>
+    <!-- Padding to the right of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingRight">48dp</dimen>
+</resources>
+
diff --git a/core/res/res/values-w720dp/dimens.xml b/core/res/res/values-w720dp/dimens.xml
index a74c41c2b0aaa..45b5c25867a15 100644
--- a/core/res/res/values-w720dp/dimens.xml
+++ b/core/res/res/values-w720dp/dimens.xml
@@ -21,4 +21,18 @@
     <!-- Size of the padding on either side of the app-supplied image
          in the action bar home section. -->
     <dimen name="action_bar_home_image_padding">16dip</dimen>
+    <!-- Preference fragment padding, sides -->
+    <dimen name="preference_fragment_padding_side">32dp</dimen>
+    <!-- Padding to the left of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingLeft">32dp</dimen>
+    <!-- Padding to the right of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingRight">32dp</dimen>
+    <!-- Weight of the left pane in a multi-pane preference layout. -->
+    <integer name="preferences_left_pane_weight">1</integer>
+    <!-- Weight of the right pane in a multi-pane preference layout. So the split is 1:2 -->
+    <integer name="preferences_right_pane_weight">2</integer>
+    <!-- Minimum space to allocate to the left of a preference item for an icon.
+        This helps in aligning titles when some items have icons and some don't. When space is
+        at a premium, we don't pre-allocate any space. -->
+    <dimen name="preference_icon_minWidth">48dp</dimen>
 </resources>
diff --git a/core/res/res/values-xlarge/styles.xml b/core/res/res/values-xlarge/styles.xml
index dd789205667f0..9b2e126b29cd4 100644
--- a/core/res/res/values-xlarge/styles.xml
+++ b/core/res/res/values-xlarge/styles.xml
@@ -35,13 +35,5 @@
     <style name="TextAppearance.StatusBar.EventContent.Title">
         <item name="android:textColor">?android:attr/textColorPrimary</item>
     </style>
-
-    <style name="PreferencePanel">
-        <item name="android:layout_marginLeft">@dimen/preference_screen_side_margin</item>
-        <item name="android:layout_marginRight">@dimen/preference_screen_side_margin</item>
-        <item name="android:layout_marginTop">48dip</item>
-        <item name="android:layout_marginBottom">48dip</item>
-        <item name="android:background">?attr/detailsElementBackground</item>
-    </style>
 </resources>
 
diff --git a/core/res/res/values/bools.xml b/core/res/res/values/bools.xml
new file mode 100644
index 0000000000000..cd551227d33c1
--- /dev/null
+++ b/core/res/res/values/bools.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <bool name="preferences_prefer_dual_pane">false</bool>
+</resources>
diff --git a/core/res/res/values/dimens.xml b/core/res/res/values/dimens.xml
index 1782f02776fdb..77ba33ec508d4 100644
--- a/core/res/res/values/dimens.xml
+++ b/core/res/res/values/dimens.xml
@@ -54,9 +54,28 @@
     <dimen name="preference_screen_side_margin">0dp</dimen>
     <!-- Preference activity side margins negative-->
     <dimen name="preference_screen_side_margin_negative">0dp</dimen>
+    <!-- Preference activity top margin -->
+    <dimen name="preference_screen_top_margin">0dp</dimen>
+    <!-- Preference activity bottom margin -->
+    <dimen name="preference_screen_bottom_margin">0dp</dimen>
     <!-- Preference widget area width (to the left of the text) -->
-    <dimen name="preference_widget_width">56dp</dimen>
-
+    <dimen name="preference_widget_width">48dp</dimen>
+    <!-- Preference fragment padding, bottom -->
+    <dimen name="preference_fragment_padding_bottom">0dp</dimen>
+    <!-- Preference fragment padding, sides -->
+    <dimen name="preference_fragment_padding_side">0dp</dimen>
+    <!-- Weight of the left pane in a multi-pane preference layout. -->
+    <integer name="preferences_left_pane_weight">4</integer>
+    <!-- Weight of the right pane in a multi-pane preference layout. So the split is 40:60 -->
+    <integer name="preferences_right_pane_weight">6</integer>
+    <!-- Padding to the left of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingLeft">0dp</dimen>
+    <!-- Padding to the right of the preference panel breadcrumb -->
+    <dimen name="preference_breadcrumb_paddingRight">0dp</dimen>
+    <!-- Minimum space to allocate to the left of a preference item for an icon.
+        This helps in aligning titles when some items have icons and some don't. When space is
+        at a premium, we don't pre-allocate any space. -->
+    <dimen name="preference_icon_minWidth">0dp</dimen>
     <!-- The platform's desired minimum size for a dialog's width when it
          is along the major axis (that is the screen is landscape).  This may
          be either a fraction or a dimension. -->
diff --git a/core/res/res/values/styles.xml b/core/res/res/values/styles.xml
index 08a3024c87d2d..74f0d6bfa7d40 100644
--- a/core/res/res/values/styles.xml
+++ b/core/res/res/values/styles.xml
@@ -2183,8 +2183,8 @@
 
     <style name="Widget.Holo.PreferenceFrameLayout">
         <item name="android:borderTop">0dip</item>
-        <item name="android:borderBottom">48dip</item>
-        <item name="android:borderLeft">32dip</item>
-        <item name="android:borderRight">32dip</item>
+        <item name="android:borderBottom">@dimen/preference_fragment_padding_side</item>
+        <item name="android:borderLeft">@dimen/preference_fragment_padding_side</item>
+        <item name="android:borderRight">@dimen/preference_fragment_padding_side</item>
     </style>
 </resources>