diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 418b1d2..80ffa43 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -141,6 +141,11 @@
             </intent-filter>
         </receiver>
 
+        <service android:name=".dynamicui.ColorExtractionService"
+            android:exported="false"
+            android:process=":wallpaper_chooser">
+        </service>
+
         <!-- The settings provider contains Home's data, like the workspace favorites -->
         <provider
             android:name="com.android.launcher3.LauncherProvider"
diff --git a/build.gradle b/build.gradle
index 6620c10..2306744 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,12 +52,14 @@
 dependencies {
     compile 'com.android.support:support-v4:23.1.1'
     compile 'com.android.support:recyclerview-v7:23.1.1'
+    compile 'com.android.support:palette-v7:23.2.0'
     compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-2'
     compile project(":WallpaperPicker-Lib")
 
     testCompile 'junit:junit:4.12'
     androidTestCompile 'com.android.support.test:runner:0.5'
     androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
+    androidTestCompile 'com.android.support:support-annotations:23.2.0'
 }
 
 protobuf {
diff --git a/res/drawable/bg_celllayout.xml b/res/drawable/bg_celllayout.xml
index 651ae52..d2219b3 100644
--- a/res/drawable/bg_celllayout.xml
+++ b/res/drawable/bg_celllayout.xml
@@ -30,6 +30,7 @@
             <stroke
                 android:width="@dimen/spring_loaded_panel_border"
                 android:color="@color/spring_loaded_highlighted_panel_border_color" />
+            <solid android:color="@android:color/transparent" />
         </shape>
     </item>
 
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index af37033..51ee47a 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -510,6 +510,9 @@
             canvas.save();
             canvas.translate(mTempLocation[0], mTempLocation[1]);
             bg.drawBackground(canvas, mFolderBgPaint);
+            if (!bg.isClipping) {
+                bg.drawBackgroundStroke(canvas, mFolderBgPaint);
+            }
             canvas.restore();
         }
 
@@ -529,11 +532,13 @@
 
         for (int i = 0; i < mFolderBackgrounds.size(); i++) {
             FolderIcon.PreviewBackground bg = mFolderBackgrounds.get(i);
-            cellToPoint(bg.delegateCellX, bg.delegateCellY, mTempLocation);
-            canvas.save();
-            canvas.translate(mTempLocation[0], mTempLocation[1]);
-            bg.drawBackgroundStroke(canvas, mFolderBgPaint);
-            canvas.restore();
+            if (bg.isClipping) {
+                cellToPoint(bg.delegateCellX, bg.delegateCellY, mTempLocation);
+                canvas.save();
+                canvas.translate(mTempLocation[0], mTempLocation[1]);
+                bg.drawBackgroundStroke(canvas, mFolderBgPaint);
+                canvas.restore();
+            }
         }
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index b16a650..6433f6b 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -105,6 +105,7 @@
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.dragndrop.DragView;
+import com.android.launcher3.dynamicui.ExtractedColors;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.logging.LoggerUtils;
@@ -279,6 +280,7 @@
 
     private LauncherModel mModel;
     private IconCache mIconCache;
+    private ExtractedColors mExtractedColors;
     @Thunk boolean mUserPresent = true;
     private boolean mVisible = false;
     private boolean mHasFocus = false;
@@ -447,6 +449,8 @@
         app.getInvariantDeviceProfile().portraitProfile.setSearchBarHeight(getSearchBarHeight());
         setupViews();
         mDeviceProfile.layout(this);
+        mExtractedColors = new ExtractedColors();
+        loadExtractedColorsAndColorItems();
 
         lockAllApps();
 
@@ -509,6 +513,19 @@
         }
     }
 
+    @Override
+    public void onExtractedColorsChanged() {
+        loadExtractedColorsAndColorItems();
+    }
+
+    private void loadExtractedColorsAndColorItems() {
+        if (mExtractedColors != null) {
+            mExtractedColors.load(this);
+            // TODO: pass mExtractedColors to interested items such as hotseat.
+            mHotseat.setBackgroundColor(mExtractedColors.getColor(ExtractedColors.VIBRANT_INDEX));
+        }
+    }
+
     private LauncherCallbacks mLauncherCallbacks;
 
     public void onPostCreate(Bundle savedInstanceState) {
@@ -997,7 +1014,7 @@
         mPaused = false;
         if (mRestoring || mOnResumeNeedsLoad) {
             setWorkspaceLoading(true);
-            mModel.startLoader(PagedView.INVALID_RESTORE_PAGE);
+            mModel.startLoader(getCurrentWorkspaceScreen());
             mRestoring = false;
             mOnResumeNeedsLoad = false;
         }
@@ -3664,6 +3681,7 @@
      * @return true if we are currently paused.  The caller might be able to
      * skip some work in that case since we will come back again.
      */
+    @Override
     public boolean setLoadOnResume() {
         if (mPaused) {
             if (LOGD) Log.d(TAG, "setLoadOnResume");
@@ -3677,6 +3695,7 @@
     /**
      * Implementation of the method from LauncherModel.Callbacks.
      */
+    @Override
     public int getCurrentWorkspaceScreen() {
         if (mWorkspace != null) {
             return mWorkspace.getCurrentPage();
@@ -4046,7 +4065,6 @@
      * Restores a pending widget.
      *
      * @param appWidgetId The app widget id
-     * @param cellInfo The position on screen where to create the widget.
      */
     private void completeRestoreAppWidget(final int appWidgetId) {
         LauncherAppWidgetHostView view = mWorkspace.getWidgetForAppWidgetId(appWidgetId);
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index e58652b..302a0c3 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -28,6 +28,7 @@
 import com.android.launcher3.compat.PackageInstallerCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.util.ConfigMonitor;
 import com.android.launcher3.util.TestingUtils;
 import com.android.launcher3.util.Thunk;
@@ -108,6 +109,11 @@
         filter.addAction(LauncherAppsCompat.ACTION_MANAGED_PROFILE_ADDED);
         filter.addAction(LauncherAppsCompat.ACTION_MANAGED_PROFILE_REMOVED);
         filter.addAction(LauncherAppsCompat.ACTION_MANAGED_PROFILE_AVAILABILITY_CHANGED);
+        // For extracting colors from the wallpaper
+        if (Utilities.isNycOrAbove()) {
+            // TODO: add a broadcast entry to the manifest for pre-N.
+            filter.addAction(Intent.ACTION_WALLPAPER_CHANGED);
+        }
 
         sContext.registerReceiver(mModel, filter);
         UserManagerCompat.getInstance(sContext).enableAndResetCache();
@@ -121,6 +127,8 @@
             }, new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED));
         }
         new ConfigMonitor(sContext).register();
+
+        ExtractionUtils.startColorExtractionServiceIfNecessary(sContext);
     }
 
     /**
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index a82fa29..030c6e2 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -54,6 +54,7 @@
 import com.android.launcher3.compat.UserHandleCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
 import com.android.launcher3.model.GridSizeMigrationTask;
@@ -1223,6 +1224,8 @@
                         PackageUpdatedTask.OP_USER_AVAILABILITY_CHANGE,
                         new String[0], user));
             }
+        } else if (Intent.ACTION_WALLPAPER_CHANGED.equals(action)) {
+            ExtractionUtils.startColorExtractionServiceIfNecessary(context);
         }
     }
 
@@ -1252,17 +1255,13 @@
      * of doing it now.
      */
     public void startLoaderFromBackground() {
-        boolean runLoader = false;
         Callbacks callbacks = getCallback();
         if (callbacks != null) {
             // Only actually run the loader if they're not paused.
             if (!callbacks.setLoadOnResume()) {
-                runLoader = true;
+                startLoader(callbacks.getCurrentWorkspaceScreen());
             }
         }
-        if (runLoader) {
-            startLoader(PagedView.INVALID_RESTORE_PAGE);
-        }
     }
 
     /**
@@ -1299,7 +1298,7 @@
 
                 // If there is already one running, tell it to stop.
                 stopLoaderLocked();
-                mLoaderTask = new LoaderTask(mApp.getContext(), loadFlags);
+                mLoaderTask = new LoaderTask(mApp.getContext(), loadFlags, synchronousBindPage);
                 if (synchronousBindPage != PagedView.INVALID_RESTORE_PAGE
                         && mAllAppsLoaded && mWorkspaceLoaded && !mIsLoaderTaskRunning) {
                     mLoaderTask.runBindSynchronousPage(synchronousBindPage);
@@ -1353,14 +1352,17 @@
      */
     private class LoaderTask implements Runnable {
         private Context mContext;
+        private int mPageToBindFirst;
+
         @Thunk boolean mIsLoadingAndBindingWorkspace;
         private boolean mStopped;
         @Thunk boolean mLoadAndBindStepFinished;
         private int mFlags;
 
-        LoaderTask(Context context, int flags) {
+        LoaderTask(Context context, int flags, int pageToBindFirst) {
             mContext = context;
             mFlags = flags;
+            mPageToBindFirst = pageToBindFirst;
         }
 
         private void loadAndBindWorkspace() {
@@ -1382,7 +1384,7 @@
             }
 
             // Bind the workspace
-            bindWorkspace(-1);
+            bindWorkspace(mPageToBindFirst);
         }
 
         private void waitForIdle() {
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 207121b..f076094 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -53,6 +53,7 @@
 import com.android.launcher3.compat.UserHandleCompat;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.util.ManagedProfileHeuristic;
 import com.android.launcher3.util.NoLocaleSqliteContext;
 import com.android.launcher3.util.Thunk;
@@ -257,7 +258,7 @@
     }
 
     @Override
-    public Bundle call(String method, String arg, Bundle extras) {
+    public Bundle call(String method, final String arg, final Bundle extras) {
         if (Binder.getCallingUid() != Process.myUid()) {
             return null;
         }
@@ -277,13 +278,19 @@
                 return result;
             }
             case LauncherSettings.Settings.METHOD_SET_BOOLEAN: {
-                boolean value = extras.getBoolean(LauncherSettings.Settings.EXTRA_VALUE);
+                final boolean value = extras.getBoolean(LauncherSettings.Settings.EXTRA_VALUE);
                 Utilities.getPrefs(getContext()).edit().putBoolean(arg, value).apply();
-                synchronized (LISTENER_LOCK) {
-                    if (mListener != null) {
-                        mListener.onSettingsChanged(arg, value);
+                new MainThreadExecutor().execute(new Runnable() {
+                    @Override
+                    public void run() {
+                        synchronized (LISTENER_LOCK) {
+                            if (mListener != null) {
+                                mListener.onSettingsChanged(arg, value);
+                            }
+                        }
+
                     }
-                }
+                });
                 if (extras.getBoolean(LauncherSettings.Settings.NOTIFY_BACKUP)) {
                     LauncherBackupAgentHelper.dataChanged(getContext());
                 }
@@ -291,6 +298,29 @@
                 result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE, value);
                 return result;
             }
+            case LauncherSettings.Settings.METHOD_SET_EXTRACTED_COLORS_AND_WALLPAPER_ID: {
+                String extractedColors = extras.getString(
+                        LauncherSettings.Settings.EXTRA_EXTRACTED_COLORS);
+                int wallpaperId = extras.getInt(LauncherSettings.Settings.EXTRA_WALLPAPER_ID);
+                Utilities.getPrefs(getContext()).edit()
+                        .putString(ExtractionUtils.EXTRACTED_COLORS_PREFERENCE_KEY, extractedColors)
+                        .putInt(ExtractionUtils.WALLPAPER_ID_PREFERENCE_KEY, wallpaperId)
+                        .apply();
+                new MainThreadExecutor().execute(new Runnable() {
+                    @Override
+                    public void run() {
+                        synchronized (LISTENER_LOCK) {
+                            if (mListener != null) {
+                                mListener.onExtractedColorsChanged();
+                            }
+                        }
+
+                    }
+                });
+                Bundle result = new Bundle();
+                result.putString(LauncherSettings.Settings.EXTRA_VALUE, extractedColors);
+                return result;
+            }
             case LauncherSettings.Settings.METHOD_CLEAR_EMPTY_DB_FLAG: {
                 clearFlagEmptyDbCreated();
                 return null;
diff --git a/src/com/android/launcher3/LauncherProviderChangeListener.java b/src/com/android/launcher3/LauncherProviderChangeListener.java
index 1b78e9c..2d2da6e 100644
--- a/src/com/android/launcher3/LauncherProviderChangeListener.java
+++ b/src/com/android/launcher3/LauncherProviderChangeListener.java
@@ -11,5 +11,7 @@
 
     public void onSettingsChanged(String settings, boolean value);
 
+    public void onExtractedColorsChanged();
+
     public void onAppWidgetHostReset();
 }
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index fb53068..0c16287 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -339,6 +339,11 @@
         public static final String METHOD_LOAD_DEFAULT_FAVORITES = "load_default_favorites";
         public static final String METHOD_MIGRATE_LAUNCHER2_SHORTCUTS = "migrate_l2_shortcuts";
 
+        public static final String METHOD_SET_EXTRACTED_COLORS_AND_WALLPAPER_ID =
+                "set_extracted_colors_and_wallpaper_id_setting";
+        public static final String EXTRA_EXTRACTED_COLORS = "extra_extractedColors";
+        public static final String EXTRA_WALLPAPER_ID = "extra_wallpaperId";
+
         public static final String EXTRA_VALUE = "value";
         public static final String EXTRA_DEFAULT_VALUE = "default_value";
         // Extra for set_boolean method to also notify the backup manager of the change.
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 3969d30..ede4279 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -19,6 +19,7 @@
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.SearchManager;
+import android.app.WallpaperManager;
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.ActivityNotFoundException;
@@ -63,10 +64,13 @@
 import com.android.launcher3.compat.UserHandleCompat;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.dynamicui.ColorExtractionService;
 import com.android.launcher3.util.IconNormalizer;
+import com.android.wallpaperpicker.common.WallpaperManagerCompat;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Locale;
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index bd5cd8a..7cceba4 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -219,7 +219,7 @@
     public static final int REORDER_TIMEOUT = 350;
     private final Alarm mFolderCreationAlarm = new Alarm();
     private final Alarm mReorderAlarm = new Alarm();
-    private FolderIcon.PreviewBackground mFolderCreateBg = new FolderIcon.PreviewBackground();
+    private FolderIcon.PreviewBackground mFolderCreateBg;
     private FolderIcon mDragOverFolderIcon = null;
     private boolean mCreateUserFolderOnDrop = false;
     private boolean mAddToExistingFolderOnDrop = false;
@@ -2878,7 +2878,9 @@
     }
 
     private void cleanupFolderCreation() {
-        mFolderCreateBg.animateToRest();
+        if (mFolderCreateBg != null) {
+            mFolderCreateBg.animateToRest();
+        }
         mFolderCreationAlarm.setOnAlarmListener(null);
         mFolderCreationAlarm.cancelAlarm();
     }
@@ -3182,6 +3184,8 @@
         int cellX;
         int cellY;
 
+        FolderIcon.PreviewBackground bg = new FolderIcon.PreviewBackground();
+
         public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
             this.layout = layout;
             this.cellX = cellX;
@@ -3190,11 +3194,15 @@
             DeviceProfile grid = mLauncher.getDeviceProfile();
             BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY);
 
-            mFolderCreateBg.setup(getResources().getDisplayMetrics(), grid, null,
+            bg.setup(getResources().getDisplayMetrics(), grid, null,
                     cell.getMeasuredWidth(), cell.getPaddingTop());
+
+            // The full preview background should appear behind the icon
+            bg.isClipping = false;
         }
 
         public void onAlarm(Alarm alarm) {
+            mFolderCreateBg = bg;
             mFolderCreateBg.animateToAccept(layout, cellX, cellY);
             layout.clearDragOutlines();
             setDragMode(DRAG_MODE_CREATE_FOLDER);
diff --git a/src/com/android/launcher3/dynamicui/ColorExtractionService.java b/src/com/android/launcher3/dynamicui/ColorExtractionService.java
new file mode 100644
index 0000000..95a62b9
--- /dev/null
+++ b/src/com/android/launcher3/dynamicui/ColorExtractionService.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+package com.android.launcher3.dynamicui;
+
+import android.app.IntentService;
+import android.app.WallpaperManager;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.os.Bundle;
+import android.support.v7.graphics.Palette;
+
+import com.android.launcher3.LauncherProvider;
+import com.android.launcher3.LauncherSettings;
+
+/**
+ * Extracts colors from the wallpaper, and saves results to {@link LauncherProvider}.
+ */
+public class ColorExtractionService extends IntentService {
+
+    public ColorExtractionService() {
+        super("ColorExtractionService");
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
+        int wallpaperId = ExtractionUtils.getWallpaperId(wallpaperManager);
+        ExtractedColors extractedColors = new ExtractedColors();
+        if (wallpaperManager.getWallpaperInfo() != null) {
+            // We can't extract colors from live wallpapers, so just use the default color always.
+            extractedColors.updatePalette(null);
+        } else {
+            Bitmap wallpaper = ((BitmapDrawable) wallpaperManager.getDrawable()).getBitmap();
+            Palette palette = Palette.from(wallpaper).generate();
+            extractedColors.updatePalette(palette);
+        }
+
+        // Save the extracted colors and wallpaper id to LauncherProvider.
+        String colorsString = extractedColors.encodeAsString();
+        Bundle extras = new Bundle();
+        extras.putInt(LauncherSettings.Settings.EXTRA_WALLPAPER_ID, wallpaperId);
+        extras.putString(LauncherSettings.Settings.EXTRA_EXTRACTED_COLORS, colorsString);
+        getContentResolver().call(
+                LauncherSettings.Settings.CONTENT_URI,
+                LauncherSettings.Settings.METHOD_SET_EXTRACTED_COLORS_AND_WALLPAPER_ID,
+                null, extras);
+    }
+}
diff --git a/src/com/android/launcher3/dynamicui/ExtractedColors.java b/src/com/android/launcher3/dynamicui/ExtractedColors.java
new file mode 100644
index 0000000..4d17ff7
--- /dev/null
+++ b/src/com/android/launcher3/dynamicui/ExtractedColors.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+package com.android.launcher3.dynamicui;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.support.v7.graphics.Palette;
+import android.util.Log;
+
+import com.android.launcher3.Utilities;
+
+/**
+ * Saves and loads colors extracted from the wallpaper, as well as the associated wallpaper id.
+ */
+public class ExtractedColors {
+    private static final String TAG = "ExtractedColors";
+
+    public static final int DEFAULT_LIGHT = Color.WHITE;
+    public static final int DEFAULT_DARK = Color.BLACK;
+    public static final int DEFAULT_COLOR = DEFAULT_LIGHT;
+
+    // These color profile indices should NOT be changed, since they are used when saving and
+    // loading extracted colors. New colors should always be added at the end.
+    public static final int DEFAULT_INDEX = 0;
+    public static final int VIBRANT_INDEX = 1;
+    public static final int VIBRANT_DARK_INDEX = 2;
+    public static final int VIBRANT_LIGHT_INDEX = 3;
+    public static final int MUTED_INDEX = 4;
+    public static final int MUTED_DARK_INDEX = 5;
+    public static final int MUTED_LIGHT_INDEX = 6;
+
+    public static final int NUM_COLOR_PROFILES = 7;
+
+    private static final String COLOR_SEPARATOR = ",";
+
+    private int[] mColors;
+
+    public ExtractedColors() {
+        mColors = new int[NUM_COLOR_PROFILES];
+    }
+
+    public void setColorAtIndex(int index, int color) {
+        if (index >= 0 && index < mColors.length) {
+            mColors[index] = color;
+        } else {
+            Log.e(TAG, "Attempted to set a color at an invalid index " + index);
+        }
+    }
+
+    /**
+     * Encodes {@link #mColors} as a comma-separated String.
+     */
+    String encodeAsString() {
+        StringBuilder colorsStringBuilder = new StringBuilder();
+        for (int color : mColors) {
+            colorsStringBuilder.append(color).append(COLOR_SEPARATOR);
+        }
+        return colorsStringBuilder.toString();
+    }
+
+    /**
+     * Decodes a comma-separated String into {@link #mColors}.
+     */
+    void decodeFromString(String colorsString) {
+        String[] splitColorsString = colorsString.split(COLOR_SEPARATOR);
+        mColors = new int[splitColorsString.length];
+        for (int i = 0; i < mColors.length; i++) {
+            mColors[i] = Integer.parseInt(splitColorsString[i]);
+        }
+    }
+
+    /**
+     * Loads colors and wallpaper id from {@link Utilities#getPrefs(Context)}.
+     * These were saved there in {@link ColorExtractionService}.
+     */
+    public void load(Context context) {
+        String encodedString = Utilities.getPrefs(context).getString(
+                ExtractionUtils.EXTRACTED_COLORS_PREFERENCE_KEY, DEFAULT_COLOR + "");
+
+        decodeFromString(encodedString);
+    }
+
+    /** @param index must be one of the index values defined at the top of this class. */
+    public int getColor(int index) {
+        if (index >= 0 && index < mColors.length) {
+            return mColors[index];
+        }
+        return DEFAULT_COLOR;
+    }
+
+    /**
+     * Updates colors based on the palette.
+     * If the palette is null, the default color is used in all cases.
+     */
+    public void updatePalette(Palette palette) {
+        if (palette == null) {
+            for (int i = 0; i < NUM_COLOR_PROFILES; i++) {
+                setColorAtIndex(i, ExtractedColors.DEFAULT_COLOR);
+            }
+        } else {
+            setColorAtIndex(ExtractedColors.DEFAULT_INDEX,
+                    ExtractedColors.DEFAULT_COLOR);
+            setColorAtIndex(ExtractedColors.VIBRANT_INDEX,
+                    palette.getVibrantColor(ExtractedColors.DEFAULT_COLOR));
+            setColorAtIndex(ExtractedColors.VIBRANT_DARK_INDEX,
+                    palette.getDarkVibrantColor(ExtractedColors.DEFAULT_DARK));
+            setColorAtIndex(ExtractedColors.VIBRANT_LIGHT_INDEX,
+                    palette.getLightVibrantColor(ExtractedColors.DEFAULT_LIGHT));
+            setColorAtIndex(ExtractedColors.MUTED_INDEX,
+                    palette.getMutedColor(ExtractedColors.DEFAULT_COLOR));
+            setColorAtIndex(ExtractedColors.MUTED_DARK_INDEX,
+                    palette.getDarkMutedColor(ExtractedColors.DEFAULT_DARK));
+            setColorAtIndex(ExtractedColors.MUTED_LIGHT_INDEX,
+                    palette.getLightVibrantColor(ExtractedColors.DEFAULT_LIGHT));
+        }
+    }
+}
diff --git a/src/com/android/launcher3/dynamicui/ExtractionUtils.java b/src/com/android/launcher3/dynamicui/ExtractionUtils.java
new file mode 100644
index 0000000..a2ff607
--- /dev/null
+++ b/src/com/android/launcher3/dynamicui/ExtractionUtils.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+package com.android.launcher3.dynamicui;
+
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+
+import com.android.launcher3.Utilities;
+import com.android.wallpaperpicker.common.WallpaperManagerCompat;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+/**
+ * Contains helper fields and methods related to extracting colors from the wallpaper.
+ */
+public class ExtractionUtils {
+    public static final String EXTRACTED_COLORS_PREFERENCE_KEY = "pref_extractedColors";
+    public static final String WALLPAPER_ID_PREFERENCE_KEY = "pref_wallpaperId";
+
+    /**
+     * Extract colors in the :wallpaper-chooser process, if the wallpaper id has changed.
+     * When the new colors are saved in the LauncherProvider,
+     * Launcher will be notified in Launcher#onSettingsChanged(String, String).
+     */
+    public static void startColorExtractionServiceIfNecessary(final Context context) {
+        // Run on a background thread, since the service is asynchronous anyway.
+        Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() {
+            @Override
+            public void run() {
+                if (hasWallpaperIdChanged(context)) {
+                    context.startService(new Intent(context, ColorExtractionService.class));
+                }
+            }
+        });
+    }
+
+    private static boolean hasWallpaperIdChanged(Context context) {
+        if (!Utilities.isNycOrAbove()) {
+            // TODO: update an id in sharedprefs in onWallpaperChanged broadcast, and read it here.
+            return false;
+        }
+        final SharedPreferences sharedPrefs = Utilities.getPrefs(context);
+        int wallpaperId = getWallpaperId(WallpaperManager.getInstance(context));
+        int savedWallpaperId = sharedPrefs.getInt(ExtractionUtils.WALLPAPER_ID_PREFERENCE_KEY, -1);
+        return wallpaperId != savedWallpaperId;
+    }
+
+    public static int getWallpaperId(WallpaperManager wallpaperManager) {
+        // TODO: use WallpaperManager#getWallpaperId(WallpaperManager.FLAG_SET_SYSTEM) directly.
+        try {
+            Method getWallpaperId = WallpaperManager.class.getMethod("getWallpaperId", int.class);
+            return (int) getWallpaperId.invoke(wallpaperManager,
+                    WallpaperManagerCompat.FLAG_SET_SYSTEM);
+        } catch (InvocationTargetException | NoSuchMethodException | IllegalAccessException e) {
+            return -1;
+        }
+    }
+}
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index a9b707f..b7e11f1 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -492,12 +492,16 @@
         canvas.restore();
     }
 
+    /**
+     * This object represents a FolderIcon preview background. It stores drawing / measurement
+     * information, handles drawing, and animation (accept state <--> rest state).
+     */
     public static class PreviewBackground {
         private float mScale = 1f;
         private float mColorMultiplier = 1f;
         private Path mClipPath = new Path();
         private int mStrokeWidth;
-        private View mInvalidateDeligate;
+        private View mInvalidateDelegate;
 
         public int previewSize;
         private int basePreviewOffsetX;
@@ -507,6 +511,10 @@
         public int delegateCellX;
         public int delegateCellY;
 
+        // When the PreviewBackground is drawn under an icon (for creating a folder) the border
+        // should not occlude the icon
+        public boolean isClipping = true;
+
         // Drawing / animation configurations
         private static final float ACCEPT_SCALE_FACTOR = 1.25f;
         private static final float ACCEPT_COLOR_MULTIPLIER = 1.5f;
@@ -519,9 +527,9 @@
 
         ValueAnimator mScaleAnimator;
 
-        public void setup(DisplayMetrics dm, DeviceProfile grid, View invalidateDeligate,
+        public void setup(DisplayMetrics dm, DeviceProfile grid, View invalidateDelegate,
                    int availableSpace, int topPadding) {
-            mInvalidateDeligate = invalidateDeligate;
+            mInvalidateDelegate = invalidateDelegate;
 
             final int previewSize = grid.folderIconSizePx;
             final int previewPadding = grid.folderIconPreviewPadding;
@@ -557,8 +565,8 @@
             mClipPath.reset();
             mClipPath.addCircle(radius, radius, radius, Path.Direction.CW);
 
-            if (mInvalidateDeligate != null) {
-                mInvalidateDeligate.invalidate();
+            if (mInvalidateDelegate != null) {
+                mInvalidateDelegate.invalidate();
             }
 
             if (mDrawingDelegate != null) {
@@ -566,8 +574,8 @@
             }
         }
 
-        void setInvalidateDeligate(View invalidateDeligate) {
-            mInvalidateDeligate = invalidateDeligate;
+        void setInvalidateDelegate(View invalidateDelegate) {
+            mInvalidateDelegate = invalidateDelegate;
             invalidate();
         }
 
@@ -742,7 +750,7 @@
 
     public void setFolderBackground(PreviewBackground bg) {
         mBackground = bg;
-        mBackground.setInvalidateDeligate(this);
+        mBackground.setInvalidateDelegate(this);
     }
 
     @Override