diff --git a/Android.mk b/Android.mk
index d41e184..4cc5e42 100644
--- a/Android.mk
+++ b/Android.mk
@@ -26,7 +26,6 @@
 LOCAL_STATIC_JAVA_LIBRARIES := \
     android-support-v4 \
     android-support-v7-recyclerview \
-    android-support-v7-palette \
     android-support-dynamic-animation
 
 LOCAL_SRC_FILES := \
@@ -72,7 +71,6 @@
 LOCAL_STATIC_JAVA_LIBRARIES := \
     android-support-v4 \
     android-support-v7-recyclerview \
-    android-support-v7-palette \
     android-support-dynamic-animation
 
 LOCAL_SRC_FILES := \
diff --git a/AndroidManifest-common.xml b/AndroidManifest-common.xml
index 94098e1..bb03f50 100644
--- a/AndroidManifest-common.xml
+++ b/AndroidManifest-common.xml
@@ -81,12 +81,6 @@
             </intent-filter>
         </receiver>
 
-        <service android:name="com.android.launcher3.dynamicui.ColorExtractionService"
-            android:exported="false"
-            android:process=":wallpaper_chooser"
-            android:permission="android.permission.BIND_JOB_SERVICE">
-        </service>
-
         <service
             android:name="com.android.launcher3.compat.WallpaperManagerCompatVL$ColorExtractionService"
             android:exported="false"
diff --git a/build.gradle b/build.gradle
index 886ccac..2376146 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,12 +13,12 @@
 apply plugin: 'com.google.protobuf'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion '26.0.0'
+    compileSdkVersion 27
+    buildToolsVersion '27.0.0'
 
     defaultConfig {
         minSdkVersion 21
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
 
@@ -86,12 +86,11 @@
     jcenter()
 }
 
-final String SUPPORT_LIBS_VERSION = '26.0.0-SNAPSHOT'
+final String SUPPORT_LIBS_VERSION = '27.0.0-SNAPSHOT'
 dependencies {
     compile "com.android.support:support-v4:${SUPPORT_LIBS_VERSION}"
     compile "com.android.support:support-dynamic-animation:${SUPPORT_LIBS_VERSION}"
     compile "com.android.support:recyclerview-v7:${SUPPORT_LIBS_VERSION}"
-    compile "com.android.support:palette-v7:${SUPPORT_LIBS_VERSION}"
     compile 'com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7'
 
     testCompile 'junit:junit:4.12'
diff --git a/go/res/values/dimens.xml b/go/res/values/dimens.xml
new file mode 100644
index 0000000..f1b1053
--- /dev/null
+++ b/go/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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>
+    <!-- Dynamic Grid -->
+    <dimen name="dynamic_grid_hotseat_size">60dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/go/res/xml/device_profiles.xml b/go/res/xml/device_profiles.xml
index 094fc74..487c026 100644
--- a/go/res/xml/device_profiles.xml
+++ b/go/res/xml/device_profiles.xml
@@ -25,7 +25,7 @@
         launcher:numColumns="4"
         launcher:numFolderRows="4"
         launcher:numFolderColumns="4"
-        launcher:iconSize="56"
+        launcher:iconSize="60"
         launcher:iconTextSize="14.0"
         launcher:defaultLayoutId="@xml/default_workspace_4x4"
         />
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index b403fbd..481199e 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -232,8 +232,4 @@
     <dimen name="horizontal_ellipsis_offset">19dp</dimen>
     <dimen name="popup_item_divider_height">0.5dp</dimen>
     <dimen name="swipe_helper_falsing_threshold">70dp</dimen>
-
-<!-- Other -->
-    <!-- Approximates the system status bar height. Not guaranteed to be always be correct. -->
-    <dimen name="status_bar_height">24dp</dimen>
 </resources>
diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index f835748..d92b934 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -355,10 +355,6 @@
         mShortcutsAndWidgets.setLayerType(hasLayer ? LAYER_TYPE_HARDWARE : LAYER_TYPE_NONE, sPaint);
     }
 
-    public void buildHardwareLayer() {
-        mShortcutsAndWidgets.buildLayer();
-    }
-
     public void setCellDimensions(int width, int height) {
         mFixedCellWidth = mCellWidth = width;
         mFixedCellHeight = mCellHeight = height;
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 824a554..8f7e882 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -354,9 +354,18 @@
         iconTextSizePx = (int) (Utilities.pxFromSp(inv.iconTextSize, dm) * scale);
         iconDrawablePaddingPx = (int) (iconDrawablePaddingOriginalPx * scale);
 
-        cellWidthPx = iconSizePx + iconDrawablePaddingPx;
         cellHeightPx = iconSizePx + iconDrawablePaddingPx
                 + Utilities.calculateTextHeight(iconTextSizePx);
+        int cellYPadding = (getCellSize().y - cellHeightPx) / 2;
+        if (iconDrawablePaddingPx > cellYPadding && !isVerticalBarLayout()
+                && !inMultiWindowMode()) {
+            // Ensures that the label is closer to its corresponding icon. This is not an issue
+            // with vertical bar layout or multi-window mode since the issue is handled separately
+            // with their calls to {@link #adjustToHideWorkspaceLabels}.
+            cellHeightPx -= (iconDrawablePaddingPx - cellYPadding);
+            iconDrawablePaddingPx = cellYPadding;
+        }
+        cellWidthPx = iconSizePx + iconDrawablePaddingPx;
 
         // All apps
         allAppsIconTextSizePx = iconTextSizePx;
@@ -759,11 +768,14 @@
         return new int[] { padding.left - mInsets.left, padding.right + mInsets.left};
     }
 
+    public boolean inMultiWindowMode() {
+        return this != inv.landscapeProfile && this != inv.portraitProfile;
+    }
+
     public boolean shouldIgnoreLongPressToOverview(float touchX) {
-        boolean inMultiWindowMode = this != inv.landscapeProfile && this != inv.portraitProfile;
         boolean touchedLhsEdge = mInsets.left == 0 && touchX < edgeMarginPx;
         boolean touchedRhsEdge = mInsets.right == 0 && touchX > (widthPx - edgeMarginPx);
-        return !inMultiWindowMode && (touchedLhsEdge || touchedRhsEdge);
+        return !inMultiWindowMode() && (touchedLhsEdge || touchedRhsEdge);
     }
 
     private static Context getContext(Context c, int orientation) {
diff --git a/src/com/android/launcher3/Hotseat.java b/src/com/android/launcher3/Hotseat.java
index a6d80e3..09f9e82 100644
--- a/src/com/android/launcher3/Hotseat.java
+++ b/src/com/android/launcher3/Hotseat.java
@@ -16,16 +16,9 @@
 
 package com.android.launcher3;
 
-import android.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.animation.ArgbEvaluator;
-import android.animation.ValueAnimator;
 import android.content.Context;
-import android.graphics.Color;
 import android.graphics.Rect;
-import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
-import android.support.v4.graphics.ColorUtils;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
@@ -35,11 +28,9 @@
 import android.widget.TextView;
 
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.dynamicui.ExtractedColors;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
-import com.android.launcher3.util.Themes;
 
 public class Hotseat extends FrameLayout
         implements UserEventDispatcher.LogContainerProvider {
@@ -51,12 +42,6 @@
     @ViewDebug.ExportedProperty(category = "launcher")
     private final boolean mHasVerticalHotseat;
 
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private int mBackgroundColor;
-    @ViewDebug.ExportedProperty(category = "launcher")
-    private ColorDrawable mBackground;
-    private ValueAnimator mBackgroundColorAnimator;
-
     public Hotseat(Context context) {
         this(context, null);
     }
@@ -69,12 +54,6 @@
         super(context, attrs, defStyle);
         mLauncher = Launcher.getLauncher(context);
         mHasVerticalHotseat = mLauncher.getDeviceProfile().isVerticalBarLayout();
-        mBackgroundColor = ColorUtils.setAlphaComponent(
-                Themes.getAttrColor(context, android.R.attr.colorPrimary), 0);
-        mBackground = new ColorDrawable(mBackgroundColor);
-        if (!FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            setBackground(mBackground);
-        }
     }
 
     public CellLayout getLayout() {
@@ -177,49 +156,4 @@
         target.gridY = info.cellY;
         targetParent.containerType = ContainerType.HOTSEAT;
     }
-
-    public void updateColor(ExtractedColors extractedColors, boolean animate) {
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            // not hotseat visible
-            return;
-        }
-        if (!mHasVerticalHotseat) {
-            int color = extractedColors.getColor(ExtractedColors.HOTSEAT_INDEX);
-            if (mBackgroundColorAnimator != null) {
-                mBackgroundColorAnimator.cancel();
-            }
-            if (!animate) {
-                setBackgroundColor(color);
-            } else {
-                mBackgroundColorAnimator = ValueAnimator.ofInt(mBackgroundColor, color);
-                mBackgroundColorAnimator.setEvaluator(new ArgbEvaluator());
-                mBackgroundColorAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
-                    @Override
-                    public void onAnimationUpdate(ValueAnimator animation) {
-                        mBackground.setColor((Integer) animation.getAnimatedValue());
-                    }
-                });
-                mBackgroundColorAnimator.addListener(new AnimatorListenerAdapter() {
-                    @Override
-                    public void onAnimationEnd(Animator animation) {
-                        mBackgroundColorAnimator = null;
-                    }
-                });
-                mBackgroundColorAnimator.start();
-            }
-            mBackgroundColor = color;
-        }
-    }
-
-    public void setBackgroundTransparent(boolean enable) {
-        if (enable) {
-            mBackground.setAlpha(0);
-        } else {
-            mBackground.setAlpha(255);
-        }
-    }
-
-    public int getBackgroundDrawableColor() {
-        return mBackgroundColor;
-    }
 }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 6342bc0..cb996c1 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -74,7 +74,6 @@
 import android.view.View;
 import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
-import android.view.ViewTreeObserver;
 import android.view.WindowManager;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
@@ -99,7 +98,6 @@
 import com.android.launcher3.dragndrop.DragOptions;
 import com.android.launcher3.dragndrop.DragView;
 import com.android.launcher3.dragndrop.PinItemDragListener;
-import com.android.launcher3.dynamicui.ExtractedColors;
 import com.android.launcher3.dynamicui.WallpaperColorInfo;
 import com.android.launcher3.folder.Folder;
 import com.android.launcher3.folder.FolderIcon;
@@ -221,8 +219,6 @@
     private static final int NEW_APPS_ANIMATION_INACTIVE_TIMEOUT_SECONDS = 5;
     @Thunk static final int NEW_APPS_ANIMATION_DELAY = 500;
 
-    private final ExtractedColors mExtractedColors = new ExtractedColors();
-
     @Thunk Workspace mWorkspace;
     private View mLauncherView;
     @Thunk DragLayer mDragLayer;
@@ -302,14 +298,6 @@
     // simply unregister this runnable.
     private Runnable mExitSpringLoadedModeRunnable;
 
-    @Thunk final Runnable mBuildLayersRunnable = new Runnable() {
-        public void run() {
-            if (mWorkspace != null) {
-                mWorkspace.buildPageHardwareLayers();
-            }
-        }
-    };
-
     // Activity result which needs to be processed after workspace has loaded.
     private ActivityResultInfo mPendingActivityResult;
     /**
@@ -403,7 +391,6 @@
 
         setupViews();
         mDeviceProfile.layout(this, false /* notifyListeners */);
-        loadExtractedColorsAndColorItems();
 
         mPopupDataProvider = new PopupDataProvider(this);
 
@@ -489,27 +476,12 @@
     }
 
     @Override
-    public void onExtractedColorsChanged() {
-        loadExtractedColorsAndColorItems();
-        mExtractedColors.notifyChange();
-    }
-
-    @Override
     public void onAppWidgetHostReset() {
         if (mAppWidgetHost != null) {
             mAppWidgetHost.startListening();
         }
     }
 
-    private void loadExtractedColorsAndColorItems() {
-        // TODO: do this in pre-N as well, once the extraction part is complete.
-        if (Utilities.ATLEAST_NOUGAT) {
-            mExtractedColors.load(this);
-            mHotseat.updateColor(mExtractedColors, !mPaused);
-            mWorkspace.getPageIndicator().updateColor(mExtractedColors);
-        }
-    }
-
     private LauncherCallbacks mLauncherCallbacks;
 
     public void onPostCreate(Bundle savedInstanceState) {
@@ -960,6 +932,8 @@
             mLauncherCallbacks.onResume();
         }
 
+        clearTypedText();
+
         TraceHelper.endSection("ON_RESUME");
     }
 
@@ -1461,44 +1435,6 @@
         }
     }
 
-    public void onWindowVisibilityChanged(int visibility) {
-        // The following code used to be in onResume, but it turns out onResume is called when
-        // you're in All Apps and click home to go to the workspace. onWindowVisibilityChanged
-        // is a more appropriate event to handle
-        if (visibility == View.VISIBLE) {
-            if (!mWorkspaceLoading) {
-                final ViewTreeObserver observer = mWorkspace.getViewTreeObserver();
-                // We want to let Launcher draw itself at least once before we force it to build
-                // layers on all the workspace pages, so that transitioning to Launcher from other
-                // apps is nice and speedy.
-                observer.addOnDrawListener(new ViewTreeObserver.OnDrawListener() {
-                    private boolean mStarted = false;
-                    public void onDraw() {
-                        if (mStarted) return;
-                        mStarted = true;
-                        // We delay the layer building a bit in order to give
-                        // other message processing a time to run.  In particular
-                        // this avoids a delay in hiding the IME if it was
-                        // currently shown, because doing that may involve
-                        // some communication back with the app.
-                        mWorkspace.postDelayed(mBuildLayersRunnable, 500);
-                        final ViewTreeObserver.OnDrawListener listener = this;
-                        mWorkspace.post(new Runnable() {
-                            public void run() {
-                                if (mWorkspace != null &&
-                                        mWorkspace.getViewTreeObserver() != null) {
-                                    mWorkspace.getViewTreeObserver().
-                                            removeOnDrawListener(listener);
-                                }
-                            }
-                        });
-                    }
-                });
-            }
-            clearTypedText();
-        }
-    }
-
     public DragLayer getDragLayer() {
         return mDragLayer;
     }
@@ -1675,7 +1611,6 @@
         super.onDestroy();
 
         unregisterReceiver(mReceiver);
-        mWorkspace.removeCallbacks(mBuildLayersRunnable);
         mWorkspace.removeFolderListeners();
 
         // Stop callbacks from LauncherModel
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 7bebf44..dfb30fd 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -28,7 +28,6 @@
 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.notification.NotificationListener;
 import com.android.launcher3.util.ConfigMonitor;
 import com.android.launcher3.util.Preconditions;
@@ -109,18 +108,11 @@
         filter.addAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE);
         filter.addAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE);
         filter.addAction(Intent.ACTION_MANAGED_PROFILE_UNLOCKED);
-        // For extracting colors from the wallpaper
-        if (Utilities.ATLEAST_NOUGAT) {
-            // TODO: add a broadcast entry to the manifest for pre-N.
-            filter.addAction(Intent.ACTION_WALLPAPER_CHANGED);
-        }
 
         mContext.registerReceiver(mModel, filter);
         UserManagerCompat.getInstance(mContext).enableAndResetCache();
         new ConfigMonitor(mContext).register();
 
-        ExtractionUtils.startColorExtractionServiceIfNecessary(mContext);
-
         if (!mContext.getResources().getBoolean(R.bool.notification_badging_enabled)) {
             mNotificationBadgingObserver = null;
         } else {
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index a906b00..74a5bac 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -37,7 +37,6 @@
 import com.android.launcher3.compat.LauncherAppsCompat;
 import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo;
 import com.android.launcher3.compat.UserManagerCompat;
-import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.graphics.LauncherIcons;
 import com.android.launcher3.model.AddWorkspaceItemsTask;
 import com.android.launcher3.model.BgDataModel;
@@ -406,8 +405,6 @@
                     enqueueModelUpdateTask(new UserLockStateChangedTask(user));
                 }
             }
-        } else if (Intent.ACTION_WALLPAPER_CHANGED.equals(action)) {
-            ExtractionUtils.startColorExtractionServiceIfNecessary(context);
         }
     }
 
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index f222a97..25a698b 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -55,7 +55,6 @@
 import com.android.launcher3.LauncherSettings.WorkspaceScreens;
 import com.android.launcher3.compat.UserManagerCompat;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.dynamicui.ExtractionUtils;
 import com.android.launcher3.graphics.IconShapeOverride;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.model.DbDowngradeHelper;
@@ -365,19 +364,6 @@
         createDbIfNotExists();
 
         switch (method) {
-            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();
-                mListenerHandler.sendEmptyMessage(ChangeListenerWrapper.MSG_EXTRACTED_COLORS_CHANGED);
-                Bundle result = new Bundle();
-                result.putString(LauncherSettings.Settings.EXTRA_VALUE, extractedColors);
-                return result;
-            }
             case LauncherSettings.Settings.METHOD_CLEAR_EMPTY_DB_FLAG: {
                 clearFlagEmptyDbCreated();
                 return null;
@@ -1153,8 +1139,7 @@
     private static class ChangeListenerWrapper implements Handler.Callback {
 
         private static final int MSG_LAUNCHER_PROVIDER_CHANGED = 1;
-        private static final int MSG_EXTRACTED_COLORS_CHANGED = 2;
-        private static final int MSG_APP_WIDGET_HOST_RESET = 3;
+        private static final int MSG_APP_WIDGET_HOST_RESET = 2;
 
         private LauncherProviderChangeListener mListener;
 
@@ -1165,9 +1150,6 @@
                     case MSG_LAUNCHER_PROVIDER_CHANGED:
                         mListener.onLauncherProviderChanged();
                         break;
-                    case MSG_EXTRACTED_COLORS_CHANGED:
-                        mListener.onExtractedColorsChanged();
-                        break;
                     case MSG_APP_WIDGET_HOST_RESET:
                         mListener.onAppWidgetHostReset();
                         break;
diff --git a/src/com/android/launcher3/LauncherProviderChangeListener.java b/src/com/android/launcher3/LauncherProviderChangeListener.java
index 7044812..0243088 100644
--- a/src/com/android/launcher3/LauncherProviderChangeListener.java
+++ b/src/com/android/launcher3/LauncherProviderChangeListener.java
@@ -9,7 +9,5 @@
 
     void onLauncherProviderChanged();
 
-    void onExtractedColorsChanged();
-
     void onAppWidgetHostReset();
 }
diff --git a/src/com/android/launcher3/LauncherSettings.java b/src/com/android/launcher3/LauncherSettings.java
index 87f62eb..3b337ef 100644
--- a/src/com/android/launcher3/LauncherSettings.java
+++ b/src/com/android/launcher3/LauncherSettings.java
@@ -304,11 +304,6 @@
 
         public static final String METHOD_LOAD_DEFAULT_FAVORITES = "load_default_favorites";
 
-        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 METHOD_REMOVE_GHOST_WIDGETS = "remove_ghost_widgets";
 
         public static final String EXTRA_VALUE = "value";
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 53110dc..e5f78bc 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -228,7 +228,6 @@
     private State mState = State.NORMAL;
     private boolean mIsSwitchingState = false;
 
-    boolean mAnimatingViewIntoPlace = false;
     boolean mChildrenLayersEnabled = true;
 
     private boolean mStripScreensOnPageStopMoving = false;
@@ -406,7 +405,7 @@
             }
         }
 
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
         mLauncher.lockScreenOrientation();
         mLauncher.onInteractionBegin();
         // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging
@@ -459,7 +458,7 @@
             removeExtraEmptyScreen(true, mDragSourceInternal != null);
         }
 
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
         mLauncher.unlockScreenOrientation(false);
 
         // Re-enable any Un/InstallShortcutReceiver and now process any queued items
@@ -1016,10 +1015,6 @@
                 || (mTransitionProgress > FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS);
     }
 
-    protected void onWindowVisibilityChanged (int visibility) {
-        mLauncher.onWindowVisibilityChanged(visibility);
-    }
-
     @Override
     public boolean dispatchUnhandledMove(View focused, int direction) {
         if (workspaceInModalState() || !isFinishedSwitchingState()) {
@@ -1109,12 +1104,12 @@
 
     protected void onPageBeginTransition() {
         super.onPageBeginTransition();
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
     }
 
     protected void onPageEndTransition() {
         super.onPageEndTransition();
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
 
         if (mDragController.isDragging()) {
             if (workspaceInModalState()) {
@@ -1490,9 +1485,9 @@
         return mState == State.NORMAL || mState == State.SPRING_LOADED;
     }
 
-    @Thunk void updateChildrenLayersEnabled(boolean force) {
+    private void updateChildrenLayersEnabled() {
         boolean small = mState == State.OVERVIEW || mIsSwitchingState;
-        boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageInTransition();
+        boolean enableChildrenLayers = small || isPageInTransition();
 
         if (enableChildrenLayers != mChildrenLayersEnabled) {
             mChildrenLayersEnabled = enableChildrenLayers;
@@ -1558,19 +1553,6 @@
         }
     }
 
-    public void buildPageHardwareLayers() {
-        // force layers to be enabled just for the call to buildLayer
-        updateChildrenLayersEnabled(true);
-        if (getWindowToken() != null) {
-            final int childCount = getChildCount();
-            for (int i = 0; i < childCount; i++) {
-                CellLayout cl = (CellLayout) getChildAt(i);
-                cl.buildHardwareLayer();
-            }
-        }
-        updateChildrenLayersEnabled(false);
-    }
-
     protected void onWallpaperTap(MotionEvent ev) {
         final int[] position = mTempXY;
         getLocationOnScreen(position);
@@ -1764,12 +1746,12 @@
         }
         invalidate(); // This will call dispatchDraw(), which calls getVisiblePages().
 
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
     }
 
     public void onEndStateTransition() {
         mIsSwitchingState = false;
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
         mForceDrawAdjacentPages = false;
         mTransitionProgress = 1;
     }
@@ -2252,16 +2234,6 @@
             }
 
             final CellLayout parent = (CellLayout) cell.getParent().getParent();
-            // Prepare it to be animated into its new position
-            // This must be called after the view has been re-parented
-            final Runnable onCompleteRunnable = new Runnable() {
-                @Override
-                public void run() {
-                    mAnimatingViewIntoPlace = false;
-                    updateChildrenLayersEnabled(false);
-                }
-            };
-            mAnimatingViewIntoPlace = true;
             if (d.dragView.hasDrawn()) {
                 if (droppedOnOriginalCellDuringTransition) {
                     // Animate the item to its original position, while simultaneously exiting
@@ -2280,12 +2252,11 @@
                 if (isWidget) {
                     int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE :
                             ANIMATE_INTO_POSITION_AND_DISAPPEAR;
-                    animateWidgetDrop(info, parent, d.dragView,
-                            onCompleteRunnable, animationType, cell, false);
+                    animateWidgetDrop(info, parent, d.dragView, null, animationType, cell, false);
                 } else {
                     int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
                     mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
-                            onCompleteRunnable, this);
+                            null, this);
                 }
             } else {
                 d.deferDragViewCleanupPostAnimation = false;
@@ -3137,7 +3108,7 @@
 
         // hardware layers on children are enabled on startup, but should be disabled until
         // needed
-        updateChildrenLayersEnabled(false);
+        updateChildrenLayersEnabled();
     }
 
     /**
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 3364c61..f249c90 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -6,14 +6,11 @@
 import android.animation.AnimatorSet;
 import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
-import android.graphics.Color;
 import android.support.animation.SpringAnimation;
-import android.support.v4.graphics.ColorUtils;
 import android.support.v4.view.animation.FastOutSlowInInterpolator;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.animation.AccelerateInterpolator;
-import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 
 import com.android.launcher3.AbstractFloatingView;
@@ -46,12 +43,8 @@
 public class AllAppsTransitionController implements TouchController, SwipeDetector.Listener,
          SearchUiManager.OnScrollRangeChangeListener {
 
-    private static final String TAG = "AllAppsTrans";
-    private static final boolean DBG = false;
-
     private final Interpolator mWorkspaceAccelnterpolator = new AccelerateInterpolator(2f);
     private final Interpolator mHotseatAccelInterpolator = new AccelerateInterpolator(1.5f);
-    private final Interpolator mDecelInterpolator = new DecelerateInterpolator(3f);
     private final Interpolator mFastOutSlowInInterpolator = new FastOutSlowInInterpolator();
     private final SwipeDetector.ScrollInterpolator mScrollInterpolator
             = new SwipeDetector.ScrollInterpolator();
@@ -60,10 +53,8 @@
     private static final int SINGLE_FRAME_MS = 16;
 
     private AllAppsContainerView mAppsView;
-    private int mAllAppsBackgroundColor;
     private Workspace mWorkspace;
     private Hotseat mHotseat;
-    private int mHotseatBackgroundColor;
 
     private AllAppsCaretController mCaretController;
 
@@ -112,7 +103,6 @@
         mProgress = 1f;
 
         mEvaluator = new ArgbEvaluator();
-        mAllAppsBackgroundColor = Themes.getAttrColor(l, android.R.attr.colorPrimary);
         mIsDarkTheme = Themes.getAttrBoolean(mLauncher, R.attr.isMainColorDark);
     }
 
@@ -266,29 +256,16 @@
             // Initialize values that should not change until #onDragEnd
             mStatusBarHeight = mLauncher.getDragLayer().getInsets().top;
             mHotseat.setVisibility(View.VISIBLE);
-            mHotseatBackgroundColor = mHotseat.getBackgroundDrawableColor();
-            mHotseat.setBackgroundTransparent(true /* transparent */);
             if (!mLauncher.isAllAppsVisible()) {
                 mLauncher.tryAndUpdatePredictedApps();
                 mAppsView.setVisibility(View.VISIBLE);
-                if (!FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-                    mAppsView.setRevealDrawableColor(mHotseatBackgroundColor);
-                }
             }
         }
     }
 
     private void updateLightStatusBar(float shift) {
-        // Do not modify status bar on landscape as all apps is not full bleed.
-        if (!FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS
-                && mLauncher.getDeviceProfile().isVerticalBarLayout()) {
-            return;
-        }
-
         // Use a light system UI (dark icons) if all apps is behind at least half of the status bar.
-        boolean forceChange = FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS ?
-                shift <= mShiftRange / 4 :
-                shift <= mStatusBarHeight / 2;
+        boolean forceChange = shift <= mShiftRange / 4;
         if (forceChange) {
             mLauncher.getSystemUiController().updateUiState(
                     SystemUiController.UI_STATE_ALL_APPS, !mIsDarkTheme);
@@ -320,17 +297,7 @@
         float workspaceAlpha = mWorkspaceAccelnterpolator.getInterpolation(workspaceHotseatAlpha);
         float hotseatAlpha = mHotseatAccelInterpolator.getInterpolation(workspaceHotseatAlpha);
 
-        int color = (Integer) mEvaluator.evaluate(mDecelInterpolator.getInterpolation(alpha),
-                mHotseatBackgroundColor, mAllAppsBackgroundColor);
-        int bgAlpha = Color.alpha((int) mEvaluator.evaluate(alpha,
-                mHotseatBackgroundColor, mAllAppsBackgroundColor));
-
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            updateAllAppsBg(alpha);
-        } else {
-            mAppsView.setRevealDrawableColor(ColorUtils.setAlphaComponent(color, bgAlpha));
-        }
-
+        updateAllAppsBg(alpha);
         mAppsView.getContentView().setAlpha(alpha);
         mAppsView.setTranslationY(shiftCurrent);
 
@@ -530,7 +497,6 @@
 
     public void finishPullDown() {
         mAppsView.setVisibility(View.INVISIBLE);
-        mHotseat.setBackgroundTransparent(false /* transparent */);
         mHotseat.setVisibility(View.VISIBLE);
         mAppsView.reset();
         if (hasSpringAnimationHandler()) {
diff --git a/src/com/android/launcher3/compat/WallpaperManagerCompatVL.java b/src/com/android/launcher3/compat/WallpaperManagerCompatVL.java
index 8e572ee..4cc70d3 100644
--- a/src/com/android/launcher3/compat/WallpaperManagerCompatVL.java
+++ b/src/com/android/launcher3/compat/WallpaperManagerCompatVL.java
@@ -15,6 +15,10 @@
  */
 package com.android.launcher3.compat;
 
+import static android.app.WallpaperManager.FLAG_SYSTEM;
+
+import static com.android.launcher3.Utilities.getDevicePrefs;
+
 import android.app.WallpaperInfo;
 import android.app.WallpaperManager;
 import android.app.job.JobInfo;
@@ -38,7 +42,6 @@
 import android.os.HandlerThread;
 import android.os.ParcelFileDescriptor;
 import android.support.annotation.Nullable;
-import android.support.v7.graphics.Palette;
 import android.util.Log;
 import android.util.Pair;
 
@@ -46,12 +49,6 @@
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-import static android.app.WallpaperManager.FLAG_SYSTEM;
-import static com.android.launcher3.Utilities.getDevicePrefs;
 
 public class WallpaperManagerCompatVL extends WallpaperManagerCompat {
 
@@ -260,27 +257,8 @@
             String value = VERSION_PREFIX + wallpaperId;
 
             if (bitmap != null) {
-                Palette palette = Palette.from(bitmap).generate();
-                bitmap.recycle();
-
-                StringBuilder builder = new StringBuilder(value);
-                List<Pair<Integer,Integer>> colorsToOccurrences = new ArrayList<>();
-                for (Palette.Swatch swatch : palette.getSwatches()) {
-                    colorsToOccurrences.add(new Pair(swatch.getRgb(), swatch.getPopulation()));
-                }
-
-                Collections.sort(colorsToOccurrences, new Comparator<Pair<Integer, Integer>>() {
-                    @Override
-                    public int compare(Pair<Integer, Integer> a, Pair<Integer, Integer> b) {
-                        return b.second - a.second;
-                    }
-                });
-
-                for (int i=0; i < Math.min(3, colorsToOccurrences.size()); i++) {
-                    builder.append(',').append(colorsToOccurrences.get(i).first);
-                }
-
-                value = builder.toString();
+                int color = Utilities.findDominantColorByHue(bitmap, MAX_WALLPAPER_EXTRACTION_AREA);
+                value += "," + color;
             }
 
             // Send the result
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 5f6909c..8a1bc63 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -39,8 +39,6 @@
     public static final boolean LAUNCHER3_UPDATE_SOFT_INPUT_MODE = false;
     // When enabled the promise icon is visible in all apps while installation an app.
     public static final boolean LAUNCHER3_PROMISE_APPS_IN_ALL_APPS = false;
-    // When enabled uses the AllAppsRadialGradientAndScrimDrawable for all apps
-    public static final boolean LAUNCHER3_GRADIENT_ALL_APPS = true;
     // When enabled allows use of physics based motions in the Launcher.
     public static final boolean LAUNCHER3_PHYSICS = true;
     // When enabled allows use of spring motions on the icons.
@@ -50,16 +48,12 @@
     public static final boolean QSB_ON_FIRST_SCREEN = true;
     // When enabled the all-apps icon is not added to the hotseat.
     public static final boolean NO_ALL_APPS_ICON = true;
-    // When enabled the status bar may show dark icons based on the top of the wallpaper.
-    public static final boolean LIGHT_STATUS_BAR = false;
     // When enabled, icons not supporting {@link AdaptiveIconDrawable} will be wrapped in {@link FixedScaleDrawable}.
     public static final boolean LEGACY_ICON_TREATMENT = true;
     // When enabled, adaptive icons would have shadows baked when being stored to icon cache.
     public static final boolean ADAPTIVE_ICON_SHADOW = true;
     // When enabled, app discovery will be enabled if service is implemented
     public static final boolean DISCOVERY_ENABLED = false;
-    // When enabled, the qsb will be moved to the hotseat.
-    public static final boolean QSB_IN_HOTSEAT = true;
 
     // When true, custom widgets are loaded using CustomWidgetParser.
     public static final boolean ENABLE_CUSTOM_WIDGETS = false;
diff --git a/src/com/android/launcher3/dynamicui/ColorExtractionService.java b/src/com/android/launcher3/dynamicui/ColorExtractionService.java
deleted file mode 100644
index b9dd3b5..0000000
--- a/src/com/android/launcher3/dynamicui/ColorExtractionService.java
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * 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.annotation.TargetApi;
-import android.app.WallpaperManager;
-import android.app.job.JobParameters;
-import android.app.job.JobService;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.BitmapRegionDecoder;
-import android.graphics.Rect;
-import android.graphics.drawable.BitmapDrawable;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.ParcelFileDescriptor;
-import android.support.v7.graphics.Palette;
-import android.util.Log;
-
-import com.android.launcher3.LauncherProvider;
-import com.android.launcher3.LauncherSettings;
-import com.android.launcher3.R;
-import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-
-import java.io.IOException;
-
-/**
- * Extracts colors from the wallpaper, and saves results to {@link LauncherProvider}.
- */
-public class ColorExtractionService extends JobService {
-
-    private static final String TAG = "ColorExtractionService";
-    private static final boolean DEBUG = false;
-
-    /** The fraction of the wallpaper to extract colors for use on the hotseat. */
-    private static final float HOTSEAT_FRACTION = 1f / 4;
-
-    private HandlerThread mWorkerThread;
-    private Handler mWorkerHandler;
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        mWorkerThread = new HandlerThread("ColorExtractionService");
-        mWorkerThread.start();
-        mWorkerHandler = new Handler(mWorkerThread.getLooper());
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        mWorkerThread.quit();
-    }
-
-    @Override
-    public boolean onStartJob(final JobParameters jobParameters) {
-        if (DEBUG) Log.d(TAG, "onStartJob");
-        mWorkerHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                WallpaperManager wallpaperManager = WallpaperManager.getInstance(
-                        ColorExtractionService.this);
-                int wallpaperId = ExtractionUtils.getWallpaperId(wallpaperManager);
-
-                ExtractedColors extractedColors = new ExtractedColors();
-                if (wallpaperManager.getWallpaperInfo() != null) {
-                    // We can't extract colors from live wallpapers; always use the default color.
-                    extractedColors.updateHotseatPalette(null);
-
-                    if (FeatureFlags.QSB_IN_HOTSEAT || FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-                        extractedColors.updateWallpaperThemePalette(null);
-                    }
-                } else {
-                    // We extract colors for the hotseat and status bar separately,
-                    // since they only consider part of the wallpaper.
-                    extractedColors.updateHotseatPalette(getHotseatPalette());
-
-                    if (FeatureFlags.LIGHT_STATUS_BAR) {
-                        extractedColors.updateStatusBarPalette(getStatusBarPalette());
-                    }
-
-                    if (FeatureFlags.QSB_IN_HOTSEAT || FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-                        extractedColors.updateWallpaperThemePalette(getWallpaperPalette());
-                    }
-                }
-
-                // 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);
-                jobFinished(jobParameters, false /* needsReschedule */);
-                if (DEBUG) Log.d(TAG, "job finished!");
-            }
-        });
-        return true;
-    }
-
-    @Override
-    public boolean onStopJob(JobParameters jobParameters) {
-        if (DEBUG) Log.d(TAG, "onStopJob");
-        mWorkerHandler.removeCallbacksAndMessages(null);
-        return true;
-    }
-
-    @TargetApi(Build.VERSION_CODES.N)
-    private Palette getHotseatPalette() {
-        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
-        if (Utilities.ATLEAST_NOUGAT) {
-            try (ParcelFileDescriptor fd = wallpaperManager
-                    .getWallpaperFile(WallpaperManager.FLAG_SYSTEM)) {
-                BitmapRegionDecoder decoder = BitmapRegionDecoder
-                        .newInstance(fd.getFileDescriptor(), false);
-                int height = decoder.getHeight();
-                Rect decodeRegion = new Rect(0, (int) (height * (1f - HOTSEAT_FRACTION)),
-                        decoder.getWidth(), height);
-                Bitmap bitmap = decoder.decodeRegion(decodeRegion, null);
-                decoder.recycle();
-                if (bitmap != null) {
-                    return Palette.from(bitmap).clearFilters().generate();
-                }
-            } catch (IOException | NullPointerException e) {
-                Log.e(TAG, "Fetching partial bitmap failed, trying old method", e);
-            }
-        }
-
-        Bitmap wallpaper = ((BitmapDrawable) wallpaperManager.getDrawable()).getBitmap();
-        return Palette.from(wallpaper)
-                .setRegion(0, (int) (wallpaper.getHeight() * (1f - HOTSEAT_FRACTION)),
-                        wallpaper.getWidth(), wallpaper.getHeight())
-                .clearFilters()
-                .generate();
-    }
-
-    @TargetApi(Build.VERSION_CODES.N)
-    private Palette getStatusBarPalette() {
-        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
-        int statusBarHeight = getResources()
-                .getDimensionPixelSize(R.dimen.status_bar_height);
-
-        if (Utilities.ATLEAST_NOUGAT) {
-            try (ParcelFileDescriptor fd = wallpaperManager
-                    .getWallpaperFile(WallpaperManager.FLAG_SYSTEM)) {
-                BitmapRegionDecoder decoder = BitmapRegionDecoder
-                        .newInstance(fd.getFileDescriptor(), false);
-                Rect decodeRegion = new Rect(0, 0,
-                        decoder.getWidth(), statusBarHeight);
-                Bitmap bitmap = decoder.decodeRegion(decodeRegion, null);
-                decoder.recycle();
-                if (bitmap != null) {
-                    return Palette.from(bitmap).clearFilters().generate();
-                }
-            } catch (IOException | NullPointerException e) {
-                Log.e(TAG, "Fetching partial bitmap failed, trying old method", e);
-            }
-        }
-
-        Bitmap wallpaper = ((BitmapDrawable) wallpaperManager.getDrawable()).getBitmap();
-        return Palette.from(wallpaper)
-                .setRegion(0, 0, wallpaper.getWidth(), statusBarHeight)
-                .clearFilters()
-                .generate();
-    }
-
-    @TargetApi(Build.VERSION_CODES.N)
-    private Palette getWallpaperPalette() {
-        WallpaperManager wallpaperManager = WallpaperManager.getInstance(this);
-        if (Utilities.ATLEAST_NOUGAT) {
-            try (ParcelFileDescriptor fd = wallpaperManager
-                    .getWallpaperFile(WallpaperManager.FLAG_SYSTEM)) {
-                Bitmap bitmap = BitmapFactory.decodeFileDescriptor(fd.getFileDescriptor());
-                if (bitmap != null) {
-                    return Palette.from(bitmap).clearFilters().generate();
-                }
-            } catch (IOException | NullPointerException e) {
-                Log.e(TAG, "Fetching partial bitmap failed, trying old method", e);
-            }
-        }
-
-        Bitmap wallpaper = ((BitmapDrawable) wallpaperManager.getDrawable()).getBitmap();
-        return Palette.from(wallpaper).clearFilters().generate();
-    }
-}
diff --git a/src/com/android/launcher3/dynamicui/ExtractedColors.java b/src/com/android/launcher3/dynamicui/ExtractedColors.java
deleted file mode 100644
index 2d8bb86..0000000
--- a/src/com/android/launcher3/dynamicui/ExtractedColors.java
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * 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.graphics.Color;
-import android.support.annotation.Nullable;
-import android.support.v4.graphics.ColorUtils;
-import android.support.v7.graphics.Palette;
-import android.util.Log;
-
-import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-
-/**
- * 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;
-
-    // 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 VERSION_INDEX = 0;
-    public static final int HOTSEAT_INDEX = 1;
-    public static final int STATUS_BAR_INDEX = 2;
-    public static final int WALLPAPER_VIBRANT_INDEX = 3;
-    public static final int ALLAPPS_GRADIENT_MAIN_INDEX = 4;
-    public static final int ALLAPPS_GRADIENT_SECONDARY_INDEX = 5;
-
-    private static final int VERSION;
-    private static final int[] DEFAULT_VALUES;
-
-    static {
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            VERSION = 3;
-            DEFAULT_VALUES = new int[] {
-                    VERSION,            // VERSION_INDEX
-                    0x40FFFFFF,         // HOTSEAT_INDEX: White with 25% alpha
-                    DEFAULT_DARK,       // STATUS_BAR_INDEX
-                    0xFFCCCCCC,         // WALLPAPER_VIBRANT_INDEX
-                    0xFF000000,         // ALLAPPS_GRADIENT_MAIN_INDEX
-                    0xFF000000          // ALLAPPS_GRADIENT_SECONDARY_INDEX
-            };
-        } else if (FeatureFlags.QSB_IN_HOTSEAT) {
-            VERSION = 2;
-            DEFAULT_VALUES = new int[] {
-                    VERSION,            // VERSION_INDEX
-                    0x40FFFFFF,         // HOTSEAT_INDEX: White with 25% alpha
-                    DEFAULT_DARK,       // STATUS_BAR_INDEX
-                    0xFFCCCCCC,         // WALLPAPER_VIBRANT_INDEX
-            };
-        } else {
-            VERSION = 1;
-            DEFAULT_VALUES = new int[] {
-                    VERSION,            // VERSION_INDEX
-                    0x40FFFFFF,         // HOTSEAT_INDEX: White with 25% alpha
-                    DEFAULT_DARK,       // STATUS_BAR_INDEX
-            };
-        }
-    }
-
-    private static final String COLOR_SEPARATOR = ",";
-
-    private final ArrayList<OnChangeListener> mListeners = new ArrayList<>();
-    private final int[] mColors;
-
-    public ExtractedColors() {
-        // The first entry is reserved for the version number.
-        mColors = Arrays.copyOf(DEFAULT_VALUES, DEFAULT_VALUES.length);
-    }
-
-    public void setColorAtIndex(int index, int color) {
-        if (index > VERSION_INDEX && 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();
-    }
-
-    /**
-     * 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, VERSION + "");
-
-        String[] splitColorsString = encodedString.split(COLOR_SEPARATOR);
-        if (splitColorsString.length == DEFAULT_VALUES.length &&
-                Integer.parseInt(splitColorsString[VERSION_INDEX]) == VERSION) {
-            // Parse and apply the saved values.
-            for (int i = 0; i < mColors.length; i++) {
-                mColors[i] = Integer.parseInt(splitColorsString[i]);
-            }
-        } else {
-            // Leave the values as default values as the saved values may not be compatible.
-            ExtractionUtils.startColorExtractionService(context);
-        }
-    }
-
-    /** @param index must be one of the index values defined at the top of this class. */
-    public int getColor(int index) {
-        return mColors[index];
-    }
-
-    /**
-     * The hotseat's color is defined as follows:
-     * - 12% black for super light wallpaper
-     * - 18% white for super dark
-     * - 25% white otherwise
-     */
-    public void updateHotseatPalette(Palette hotseatPalette) {
-        int hotseatColor;
-        if (hotseatPalette != null && ExtractionUtils.isSuperLight(hotseatPalette)) {
-            hotseatColor = ColorUtils.setAlphaComponent(Color.BLACK, (int) (0.12f * 255));
-        } else if (hotseatPalette != null && ExtractionUtils.isSuperDark(hotseatPalette)) {
-            hotseatColor = ColorUtils.setAlphaComponent(Color.WHITE, (int) (0.18f * 255));
-        } else {
-            hotseatColor = DEFAULT_VALUES[HOTSEAT_INDEX];
-        }
-        setColorAtIndex(HOTSEAT_INDEX, hotseatColor);
-    }
-
-    public void updateStatusBarPalette(Palette statusBarPalette) {
-        setColorAtIndex(STATUS_BAR_INDEX, ExtractionUtils.isSuperLight(statusBarPalette) ?
-                DEFAULT_LIGHT : DEFAULT_DARK);
-    }
-
-    public void updateWallpaperThemePalette(@Nullable Palette wallpaperPalette) {
-        int defaultColor = DEFAULT_VALUES[WALLPAPER_VIBRANT_INDEX];
-        setColorAtIndex(WALLPAPER_VIBRANT_INDEX, wallpaperPalette == null
-                ? defaultColor : wallpaperPalette.getVibrantColor(defaultColor));
-    }
-
-    public void addOnChangeListener(OnChangeListener listener) {
-        mListeners.add(listener);
-    }
-
-    public void notifyChange() {
-        for (OnChangeListener listener : mListeners) {
-            listener.onExtractedColorsChanged();
-        }
-    }
-
-    /**
-     * Interface for listening for extracted color changes
-     */
-    public interface OnChangeListener {
-
-        void onExtractedColorsChanged();
-    }
-}
diff --git a/src/com/android/launcher3/dynamicui/ExtractionUtils.java b/src/com/android/launcher3/dynamicui/ExtractionUtils.java
deleted file mode 100644
index cc0e0be..0000000
--- a/src/com/android/launcher3/dynamicui/ExtractionUtils.java
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * 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.annotation.TargetApi;
-import android.app.WallpaperManager;
-import android.app.job.JobInfo;
-import android.app.job.JobScheduler;
-import android.content.ComponentName;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.graphics.Color;
-import android.os.Build;
-import android.support.v4.graphics.ColorUtils;
-import android.support.v7.graphics.Palette;
-
-import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-
-import java.util.List;
-
-/**
- * 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";
-
-    private static final float MIN_CONTRAST_RATIO = 2f;
-
-    /**
-     * 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) {
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            return;
-        }
-        // 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)) {
-                    startColorExtractionService(context);
-                }
-            }
-        });
-    }
-
-    /** Starts the {@link ColorExtractionService} without checking the wallpaper id */
-    public static void startColorExtractionService(Context context) {
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            return;
-        }
-        JobScheduler jobScheduler = (JobScheduler) context.getSystemService(
-                Context.JOB_SCHEDULER_SERVICE);
-        jobScheduler.schedule(new JobInfo.Builder(Utilities.COLOR_EXTRACTION_JOB_ID,
-                new ComponentName(context, ColorExtractionService.class))
-                .setMinimumLatency(0).build());
-    }
-
-    private static boolean hasWallpaperIdChanged(Context context) {
-        if (!Utilities.ATLEAST_NOUGAT) {
-            // 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;
-    }
-
-    @TargetApi(Build.VERSION_CODES.N)
-    public static int getWallpaperId(WallpaperManager wallpaperManager) {
-        return Utilities.ATLEAST_NOUGAT ?
-                wallpaperManager.getWallpaperId(WallpaperManager.FLAG_SYSTEM) : -1;
-    }
-
-    public static boolean isSuperLight(Palette p) {
-        return !isLegibleOnWallpaper(Color.WHITE, p.getSwatches());
-    }
-
-    public static boolean isSuperDark(Palette p) {
-        return !isLegibleOnWallpaper(Color.BLACK, p.getSwatches());
-    }
-
-    /**
-     * Given a color, returns true if that color is legible on
-     * the given wallpaper color swatches, else returns false.
-     */
-    private static boolean isLegibleOnWallpaper(int color, List<Palette.Swatch> wallpaperSwatches) {
-        int legiblePopulation = 0;
-        int illegiblePopulation = 0;
-        for (Palette.Swatch swatch : wallpaperSwatches) {
-            if (isLegible(color, swatch.getRgb())) {
-                legiblePopulation += swatch.getPopulation();
-            } else {
-                illegiblePopulation += swatch.getPopulation();
-            }
-        }
-        return legiblePopulation > illegiblePopulation;
-    }
-
-    /** @return Whether the foreground color is legible on the background color. */
-    private static boolean isLegible(int foreground, int background) {
-        background = ColorUtils.setAlphaComponent(background, 255);
-        return ColorUtils.calculateContrast(foreground, background) >= MIN_CONTRAST_RATIO;
-    }
-
-}
diff --git a/src/com/android/launcher3/pageindicators/PageIndicator.java b/src/com/android/launcher3/pageindicators/PageIndicator.java
index 47c2ffb..d6ef5b4 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicator.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicator.java
@@ -20,8 +20,6 @@
 import android.util.AttributeSet;
 import android.widget.FrameLayout;
 
-import com.android.launcher3.dynamicui.ExtractedColors;
-
 /**
  * Base class for a page indicator.
  */
@@ -74,8 +72,6 @@
 
     public void setShouldAutoHide(boolean shouldAutoHide) {}
 
-    public void updateColor(ExtractedColors extractedColors) {}
-
     @Override
     protected boolean verifyDrawable(Drawable who) {
         return super.verifyDrawable(who) || who == getCaretDrawable();
diff --git a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
index 6281fec..5eedd92 100644
--- a/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
+++ b/src/com/android/launcher3/pageindicators/PageIndicatorLineCaret.java
@@ -11,9 +11,7 @@
 import android.graphics.Paint;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.v4.graphics.ColorUtils;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.util.Property;
 import android.view.ViewConfiguration;
 import android.widget.ImageView;
@@ -21,8 +19,6 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
-import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.dynamicui.ExtractedColors;
 import com.android.launcher3.dynamicui.WallpaperColorInfo;
 
 /**
@@ -31,9 +27,6 @@
  * The fraction is 1 / number of pages and the position is based on the progress of the page scroll.
  */
 public class PageIndicatorLineCaret extends PageIndicator {
-    private static final String TAG = "PageIndicatorLine";
-
-    private static final int[] sTempCoords = new int[2];
 
     private static final int LINE_ANIMATE_DURATION = ViewConfiguration.getScrollBarFadeDuration();
     private static final int LINE_FADE_DELAY = ViewConfiguration.getScrollDefaultDelay();
@@ -218,32 +211,6 @@
         }
     }
 
-    /**
-     * The line's color will be:
-     * - mostly opaque white if the hotseat is white (ignoring alpha)
-     * - mostly opaque black if the hotseat is black (ignoring alpha)
-     */
-    public void updateColor(ExtractedColors extractedColors) {
-        if (FeatureFlags.LAUNCHER3_GRADIENT_ALL_APPS) {
-            return;
-        }
-        int originalLineAlpha = mLinePaint.getAlpha();
-        int color = extractedColors.getColor(ExtractedColors.HOTSEAT_INDEX);
-        if (color != Color.TRANSPARENT) {
-            color = ColorUtils.setAlphaComponent(color, 255);
-            if (color == Color.BLACK) {
-                mActiveAlpha = BLACK_ALPHA;
-            } else if (color == Color.WHITE) {
-                mActiveAlpha = WHITE_ALPHA;
-            } else {
-                Log.e(TAG, "Setting workspace page indicators to an unsupported color: #"
-                        + Integer.toHexString(color));
-            }
-            mLinePaint.setColor(color);
-            mLinePaint.setAlpha(originalLineAlpha);
-        }
-    }
-
     private void animateLineToAlpha(int alpha) {
         if (alpha == mToAlpha) {
             // Ignore the new animation if it is going to the same alpha as the current animation.