diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4ac51ab..1a485ed 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -20,7 +20,7 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.launcher3">
-    <uses-sdk android:targetSdkVersion="23" android:minSdkVersion="21"/>
+    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"/>
     <!--
     Manifest entries specific to Launcher3. This is merged with AndroidManifest-common.xml.
     Refer comments around specific entries on how to extend individual components.
diff --git a/build.gradle b/build.gradle
index 33409c5..e40df06 100644
--- a/build.gradle
+++ b/build.gradle
@@ -36,28 +36,32 @@
         targetCompatibility JavaVersion.VERSION_1_8
     }
 
-    flavorDimensions "default"
+    // The flavor dimensions for build variants (e.g. aospWithQuickstep, aospWithoutQuickstep)
+    // See: https://developer.android.com/studio/build/build-variants#flavor-dimensions
+    flavorDimensions "app", "recents"
 
     productFlavors {
         aosp {
-            dimension "default"
+            dimension "app"
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
 
         l3go {
-            dimension "default"
+            dimension "app"
             applicationId 'com.android.launcher3'
             testApplicationId 'com.android.launcher3.tests'
         }
 
-        quickstep {
-            dimension "default"
-            applicationId 'com.android.launcher3'
-            testApplicationId 'com.android.launcher3.tests'
+        withQuickstep {
+            dimension "recents"
 
             minSdkVersion 28
         }
+
+        withoutQuickstep {
+            dimension "recents"
+        }
     }
 
     // Disable release builds for now
@@ -70,7 +74,7 @@
     sourceSets {
         main {
             res.srcDirs = ['res']
-            java.srcDirs = ['src', 'src_shortcuts_overrides']
+            java.srcDirs = ['src', 'src_plugins']
             manifest.srcFile 'AndroidManifest-common.xml'
             proto {
                 srcDir 'protos/'
@@ -93,18 +97,23 @@
         }
 
         aosp {
-            java.srcDirs = ['src_flags', "src_ui_overrides"]
+            java.srcDirs = ['src_flags', 'src_shortcuts_overrides']
+            manifest.srcFile "AndroidManifest.xml"
         }
 
         l3go {
             res.srcDirs = ['go/res']
-            java.srcDirs = ['go/src', "src_ui_overrides"]
+            java.srcDirs = ['go/src']
             manifest.srcFile "go/AndroidManifest.xml"
         }
 
-        quickstep {
+        withoutQuickstep {
+            java.srcDirs = ['src_ui_overrides']
+        }
+
+        withQuickstep {
             res.srcDirs = ['quickstep/res']
-            java.srcDirs = ['src_flags', 'quickstep/src']
+            java.srcDirs = ['quickstep/src']
             manifest.srcFile "quickstep/AndroidManifest.xml"
         }
     }
@@ -121,14 +130,14 @@
     implementation "androidx.dynamicanimation:dynamicanimation:${ANDROID_X_VERSION}"
     implementation "androidx.recyclerview:recyclerview:${ANDROID_X_VERSION}"
     implementation "androidx.preference:preference:${ANDROID_X_VERSION}"
-    implementation PROTOBUF_DEPENDENCY
     implementation project(':IconLoader')
+    implementation fileTree(dir: "libs", include: 'launcher_protos.jar')
 
-    // This is already included in sysui_shared
-    aospImplementation fileTree(dir: "libs", include: 'plugin_core.jar')
-    l3goImplementation fileTree(dir: "libs", include: 'plugin_core.jar')
+    // Recents lib dependency
+    withQuickstepImplementation fileTree(dir: "quickstep/libs", include: 'sysui_shared.jar')
 
-    quickstepImplementation fileTree(dir: "quickstep/libs", include: 'sysui_shared.jar')
+    // Required for AOSP to compile. This is already included in the sysui_shared.jar
+    withoutQuickstepImplementation fileTree(dir: "libs", include: 'plugin_core.jar')
 
     testImplementation 'junit:junit:4.12'
     androidTestImplementation "org.mockito:mockito-core:1.9.5"
diff --git a/go/AndroidManifest.xml b/go/AndroidManifest.xml
index 0080898..25518af 100644
--- a/go/AndroidManifest.xml
+++ b/go/AndroidManifest.xml
@@ -22,7 +22,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.android.launcher3" >
 
-    <uses-sdk android:targetSdkVersion="23" android:minSdkVersion="21"/>
+    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"/>
 
     <application
         android:backupAgent="com.android.launcher3.LauncherBackupAgent"
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java b/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
index 63820f6..ce66448 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/BaseIconCache.java
@@ -151,7 +151,7 @@
     private synchronized void updateIconParamsBg(int iconDpi, int iconPixelSize) {
         mIconDpi = iconDpi;
         mDefaultIcons.clear();
-
+        mIconDb.clear();
         mIconDb.close();
         mIconDb = new IconDB(mContext, mDbFileName, iconPixelSize);
         mCache.clear();
diff --git a/quickstep/libs/sysui_shared.jar b/quickstep/libs/sysui_shared.jar
index 6e7534d..8af310c 100644
--- a/quickstep/libs/sysui_shared.jar
+++ b/quickstep/libs/sysui_shared.jar
Binary files differ
diff --git a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
index 20a83b5..a1cee82 100644
--- a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
@@ -80,8 +80,8 @@
 import com.android.systemui.shared.system.RemoteAnimationDefinitionCompat;
 import com.android.systemui.shared.system.RemoteAnimationRunnerCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier.SurfaceParams;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
 /**
@@ -204,7 +204,15 @@
                         mLauncher.getStateManager().setCurrentAnimation(anim);
 
                         Rect windowTargetBounds = getWindowTargetBounds(targetCompats);
-                        playIconAnimators(anim, v, windowTargetBounds);
+                        boolean isAllOpeningTargetTrs = true;
+                        for (int i = 0; i < targetCompats.length; i++) {
+                            RemoteAnimationTargetCompat target = targetCompats[i];
+                            if (target.mode == MODE_OPENING) {
+                                isAllOpeningTargetTrs &= target.isTranslucent;
+                            }
+                            if (!isAllOpeningTargetTrs) break;
+                        }
+                        playIconAnimators(anim, v, windowTargetBounds, !isAllOpeningTargetTrs);
                         if (launcherClosing) {
                             Pair<AnimatorSet, Runnable> launcherContentAnimator =
                                     getLauncherContentAnimator(true /* isAppOpening */);
@@ -432,7 +440,8 @@
     /**
      * Animators for the "floating view" of the view used to launch the target.
      */
-    private void playIconAnimators(AnimatorSet appOpenAnimator, View v, Rect windowTargetBounds) {
+    private void playIconAnimators(AnimatorSet appOpenAnimator, View v, Rect windowTargetBounds,
+            boolean toggleVisibility) {
         final boolean isBubbleTextView = v instanceof BubbleTextView;
         mFloatingView = new View(mLauncher);
         if (isBubbleTextView && v.getTag() instanceof ItemInfoWithIcon ) {
@@ -485,7 +494,9 @@
 
         // Swap the two views in place.
         ((ViewGroup) mDragLayer.getParent()).addView(mFloatingView);
-        v.setVisibility(View.INVISIBLE);
+        if (toggleVisibility) {
+            v.setVisibility(View.INVISIBLE);
+        }
 
         int[] dragLayerBounds = new int[2];
         mDragLayer.getLocationOnScreen(dragLayerBounds);
@@ -580,8 +591,8 @@
                 MODE_OPENING);
         RemoteAnimationTargetSet closingTargets = new RemoteAnimationTargetSet(targets,
                 MODE_CLOSING);
-        SyncRtSurfaceTransactionApplier surfaceApplier = new SyncRtSurfaceTransactionApplier(
-                mFloatingView);
+        SyncRtSurfaceTransactionApplierCompat surfaceApplier =
+                new SyncRtSurfaceTransactionApplierCompat(mFloatingView);
 
         ValueAnimator appAnimator = ValueAnimator.ofFloat(0, 1);
         appAnimator.setDuration(APP_LAUNCH_DURATION);
@@ -740,8 +751,8 @@
      * Animator that controls the transformations of the windows the targets that are closing.
      */
     private Animator getClosingWindowAnimators(RemoteAnimationTargetCompat[] targets) {
-        SyncRtSurfaceTransactionApplier surfaceApplier =
-                new SyncRtSurfaceTransactionApplier(mDragLayer);
+        SyncRtSurfaceTransactionApplierCompat surfaceApplier =
+                new SyncRtSurfaceTransactionApplierCompat(mDragLayer);
         Matrix matrix = new Matrix();
         ValueAnimator closingAnimator = ValueAnimator.ofFloat(0, 1);
         int duration = CLOSING_TRANSITION_DURATION_MS;
diff --git a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
index eaf4183..5afeca7 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/plugins/PluginEnablerImpl.java
@@ -34,7 +34,16 @@
     }
 
     @Override
-    public void setEnabled(ComponentName component, boolean enabled) {
+    public void setEnabled(ComponentName component) {
+        setState(component, true);
+    }
+
+    @Override
+    public void setDisabled(ComponentName component, int reason) {
+        setState(component, reason == ENABLED);
+    }
+
+    private void setState(ComponentName component, boolean enabled) {
         putBoolean(pluginEnabledKey(component), enabled);
     }
 
@@ -44,6 +53,11 @@
     }
 
     @Override
+    public int getDisableReason(ComponentName componentName) {
+        return isEnabled(componentName) ? ENABLED : DISABLED_MANUALLY;
+    }
+
+    @Override
     public void putBoolean(String key, boolean value) {
         mSharedPrefs.edit().putBoolean(key, value).apply();
     }
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
index a3207f5..9bbe57a 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.java
@@ -66,7 +66,7 @@
 import com.android.systemui.shared.system.LatencyTrackerCompat;
 import com.android.systemui.shared.system.PackageManagerWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 import com.android.systemui.shared.system.TransactionCompat;
 
 import java.util.ArrayList;
@@ -344,7 +344,7 @@
             clipHelper.prepareAnimation(false /* isOpening */);
 
             ClipAnimationHelper.TransformParams params = new ClipAnimationHelper.TransformParams()
-                    .setSyncTransactionApplier(new SyncRtSurfaceTransactionApplier(rootView));
+                    .setSyncTransactionApplier(new SyncRtSurfaceTransactionApplierCompat(rootView));
             ValueAnimator valueAnimator = ValueAnimator.ofFloat(0, 1);
             valueAnimator.setDuration(RECENTS_LAUNCH_DURATION);
             valueAnimator.setInterpolator(TOUCH_RESPONSE_INTERPOLATOR);
diff --git a/quickstep/src/com/android/quickstep/QuickScrubController.java b/quickstep/src/com/android/quickstep/QuickScrubController.java
index b07f8af..da5c4fa 100644
--- a/quickstep/src/com/android/quickstep/QuickScrubController.java
+++ b/quickstep/src/com/android/quickstep/QuickScrubController.java
@@ -21,6 +21,7 @@
 import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_TASK_STABILIZER;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -289,16 +290,20 @@
                 }
                 mPrevPrevProgressDelta = mPrevProgressDelta;
                 mPrevProgressDelta = progressDelta;
-                float scrollDiff = nextPage.getWidth() + mRecentsView.getPageSpacing();
-                int scrollDir = mRecentsView.isRtl() ? -1 : 1;
-                int linearScrollDiff = (int) (progress * scrollDiff * scrollDir);
-                float accelScrollDiff = ACCEL.getInterpolation(progress) * scrollDiff * scrollDir;
+                int startScroll = mRecentsView.getScrollForPage(
+                        mRecentsView.indexOfChild(currentPage));
+                int scrollDiff = mRecentsView.getScrollForPage(mRecentsView.indexOfChild(nextPage))
+                        - startScroll;
+
+                int linearScrollDiff = (int) (progress * scrollDiff);
                 currentPage.setZoomScale(1 - DEACCEL_3.getInterpolation(progress)
                         * TaskView.EDGE_SCALE_DOWN_FACTOR);
-                currentPage.setTranslationX(linearScrollDiff + accelScrollDiff);
+                if (!ENABLE_TASK_STABILIZER.get()) {
+                    float accelScrollDiff = ACCEL.getInterpolation(progress) * scrollDiff;
+                    currentPage.setTranslationX(linearScrollDiff + accelScrollDiff);
+                }
                 nextPage.setTranslationZ(1);
                 nextPage.setTranslationY(currentPage.getTranslationY());
-                int startScroll = mRecentsView.isRtl() ? mRecentsView.getMaxScrollX() : 0;
                 mRecentsView.setScrollX(startScroll + linearScrollDiff);
             }
             return;
@@ -358,9 +363,16 @@
                     : mStartedFromHome
                         ? QUICK_SCRUB_FROM_HOME_START_DURATION
                         : QUICK_SCRUB_FROM_APP_START_DURATION;
-            int pageToGoTo = mStartedFromHome || mIsQuickSwitch
-                    ? 0
-                    : mRecentsView.getNextPage() + 1;
+            final int pageToGoTo;
+            if (mStartedFromHome) {
+                pageToGoTo = 0;
+            } else if (mIsQuickSwitch) {
+                TaskView tv = mRecentsView.getRunningTaskView();
+                pageToGoTo = tv != null ? mRecentsView.indexOfChild(tv)
+                        : mRecentsView.getNextPage();
+            } else {
+                pageToGoTo = mRecentsView.getNextPage() + 1;
+            }
             goToPageWithHaptic(pageToGoTo, duration, true /* forceHaptic */,
                     QUICK_SCRUB_START_INTERPOLATOR);
         }
diff --git a/quickstep/src/com/android/quickstep/TaskUtils.java b/quickstep/src/com/android/quickstep/TaskUtils.java
index cf46b09..c2777e7 100644
--- a/quickstep/src/com/android/quickstep/TaskUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskUtils.java
@@ -43,7 +43,7 @@
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 
 import java.util.List;
 
@@ -146,7 +146,8 @@
     public static ValueAnimator getRecentsWindowAnimator(TaskView v, boolean skipViewChanges,
             RemoteAnimationTargetCompat[] targets, final ClipAnimationHelper inOutHelper) {
         ClipAnimationHelper.TransformParams params = new ClipAnimationHelper.TransformParams()
-                .setSyncTransactionApplier(new SyncRtSurfaceTransactionApplier(v));
+                .setSyncTransactionApplier(new SyncRtSurfaceTransactionApplierCompat(v));
+        
         final ValueAnimator appAnimator = ValueAnimator.ofFloat(0, 1);
         appAnimator.setInterpolator(TOUCH_RESPONSE_INTERPOLATOR);
         appAnimator.addUpdateListener(new MultiValueUpdateListener() {
diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 686b52b..e951750 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -87,7 +87,7 @@
 import com.android.systemui.shared.system.LatencyTrackerCompat;
 import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 import com.android.systemui.shared.system.WindowCallbacksCompat;
 
 import java.util.StringJoiner;
@@ -216,7 +216,7 @@
     private T mActivity;
     private LayoutListener mLayoutListener;
     private RecentsView mRecentsView;
-    private SyncRtSurfaceTransactionApplier mSyncTransactionApplier;
+    private SyncRtSurfaceTransactionApplierCompat mSyncTransactionApplier;
     private QuickScrubController mQuickScrubController;
     private AnimationFactory mAnimationFactory = (t, i) -> { };
 
@@ -407,7 +407,7 @@
         }
 
         mRecentsView = activity.getOverviewPanel();
-        SyncRtSurfaceTransactionApplier.create(mRecentsView, (applier) -> {
+        SyncRtSurfaceTransactionApplierCompat.create(mRecentsView, (applier) -> {
             mSyncTransactionApplier = applier;
         });
         mQuickScrubController = mRecentsView.getQuickScrubController();
@@ -588,7 +588,7 @@
 
         RecentsAnimationControllerCompat controller = mRecentsAnimationWrapper.getController();
         if (controller != null) {
-            SyncRtSurfaceTransactionApplier syncTransactionApplier
+            SyncRtSurfaceTransactionApplierCompat syncTransactionApplier
                     = Looper.myLooper() == mMainThreadHandler.getLooper()
                             ? mSyncTransactionApplier
                             : null;
diff --git a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
index d8a3282..431517a 100644
--- a/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
+++ b/quickstep/src/com/android/quickstep/util/ClipAnimationHelper.java
@@ -46,8 +46,8 @@
 import com.android.systemui.shared.recents.ISystemUiProxy;
 import com.android.systemui.shared.recents.utilities.RectFEvaluator;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplier.SurfaceParams;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.TransactionCompat;
 import com.android.systemui.shared.system.WindowManagerWrapper;
 
@@ -217,14 +217,14 @@
         return mCurrentRectWithInsets;
     }
 
-    private void applySurfaceParams(@Nullable SyncRtSurfaceTransactionApplier
+    private void applySurfaceParams(@Nullable SyncRtSurfaceTransactionApplierCompat
             syncTransactionApplier, SurfaceParams[] params) {
         if (syncTransactionApplier != null) {
             syncTransactionApplier.scheduleApply(params);
         } else {
             TransactionCompat t = new TransactionCompat();
             for (SurfaceParams param : params) {
-                SyncRtSurfaceTransactionApplier.applyParams(t, param);
+                SyncRtSurfaceTransactionApplierCompat.applyParams(t, param);
             }
             t.setEarlyWakeup();
             t.apply();
@@ -353,7 +353,7 @@
 
     public static class TransformParams {
         float progress;
-        SyncRtSurfaceTransactionApplier syncTransactionApplier;
+        SyncRtSurfaceTransactionApplierCompat syncTransactionApplier;
 
         public TransformParams() {
             progress = 0;
@@ -364,7 +364,8 @@
             return this;
         }
 
-        public TransformParams setSyncTransactionApplier(SyncRtSurfaceTransactionApplier applier) {
+        public TransformParams setSyncTransactionApplier(
+                SyncRtSurfaceTransactionApplierCompat applier) {
             this.syncTransactionApplier = applier;
             return this;
         }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 6861bc1..34b5748 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -484,6 +484,11 @@
             final TaskView taskView = (TaskView) getChildAt(pageIndex);
             taskView.bind(task);
         }
+        TaskView runningTaskView = getRunningTaskView();
+        if (runningTaskView != null) {
+            setCurrentPage(indexOfChild(runningTaskView));
+        }
+
         if (mIgnoreResetTaskId != -1 && getTaskView(mIgnoreResetTaskId) != ignoreRestTaskView) {
             // If the taskView mapping is changing, do not preserve the visuals. Since we are
             // mostly preserving the first task, and new taskViews are added to the end, it should
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 4853a90..d96855e 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -342,6 +342,14 @@
     }
 
     @Override
+    public void onVisibilityAggregated(boolean isVisible) {
+        super.onVisibilityAggregated(isVisible);
+        if (mIcon != null) {
+            mIcon.setVisible(isVisible, false);
+        }
+    }
+
+    @Override
     public void onLauncherResume() {
         // Reset the pressed state of icon that was locked in the press state while activity
         // was launching
@@ -573,6 +581,9 @@
             applyCompoundDrawables(icon);
         }
         mIcon = icon;
+        if (mIcon != null) {
+            mIcon.setVisible(getWindowVisibility() == VISIBLE && isShown(), false);
+        }
     }
 
     public void setIconVisible(boolean visible) {
diff --git a/src/com/android/launcher3/DropTarget.java b/src/com/android/launcher3/DropTarget.java
index 4d30479..763432d 100644
--- a/src/com/android/launcher3/DropTarget.java
+++ b/src/com/android/launcher3/DropTarget.java
@@ -78,17 +78,17 @@
          */
         public final float[] getVisualCenter(float[] recycle) {
             final float res[] = (recycle == null) ? new float[2] : recycle;
+            Rect dragRegion = dragView.getDragRegion();
 
             // These represent the visual top and left of drag view if a dragRect was provided.
             // If a dragRect was not provided, then they correspond to the actual view left and
             // top, as the dragRect is in that case taken to be the entire dragView.
-            // R.dimen.dragViewOffsetY.
-            int left = x - xOffset;
-            int top = y - yOffset;
+            int left = x - xOffset - dragRegion.left;
+            int top = y - yOffset - dragRegion.top;
 
             // In order to find the visual center, we shift by half the dragRect
-            res[0] = left + dragView.getDragRegion().width() / 2;
-            res[1] = top + dragView.getDragRegion().height() / 2;
+            res[0] = left + dragRegion.width() / 2;
+            res[1] = top + dragRegion.height() / 2;
 
             return res;
         }
diff --git a/src/com/android/launcher3/FastBitmapDrawable.java b/src/com/android/launcher3/FastBitmapDrawable.java
index daf587a..964e8b6 100644
--- a/src/com/android/launcher3/FastBitmapDrawable.java
+++ b/src/com/android/launcher3/FastBitmapDrawable.java
@@ -17,6 +17,7 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.anim.Interpolators.DEACCEL;
 
 import android.animation.ObjectAnimator;
 import android.graphics.Bitmap;
@@ -221,8 +222,15 @@
                 mScaleAnimation.setInterpolator(ACCEL);
                 mScaleAnimation.start();
             } else {
-                mScale = 1f;
-                invalidateSelf();
+                if (isVisible()) {
+                    mScaleAnimation = ObjectAnimator.ofFloat(this, SCALE, 1f);
+                    mScaleAnimation.setDuration(CLICK_FEEDBACK_DURATION);
+                    mScaleAnimation.setInterpolator(DEACCEL);
+                    mScaleAnimation.start();
+                } else {
+                    mScale = 1f;
+                    invalidateSelf();
+                }
             }
             return true;
         }
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index dbefa45..5c842a5 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -17,10 +17,12 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.config.FeatureFlags.APPLY_CONFIG_AT_RUNTIME;
+import static com.android.launcher3.Utilities.getDevicePrefs;
 
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.Configuration;
+import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
 import android.graphics.Point;
@@ -46,24 +48,30 @@
 
 public class InvariantDeviceProfile {
 
+    public static final String TAG = "IDP";
     // We do not need any synchronization for this variable as its only written on UI thread.
     public static final MainThreadInitializedObject<InvariantDeviceProfile> INSTANCE =
             new MainThreadInitializedObject<>(InvariantDeviceProfile::new);
 
-    private static final String KEY_IDP_GRIP_NAME = "idp_grid_name";
+    private static final String KEY_IDP_GRID_NAME = "idp_grid_name";
 
     private static final float ICON_SIZE_DEFINED_IN_APP_DP = 48;
 
     public static final int CHANGE_FLAG_GRID = 1 << 0;
-    public static final int CHANGE_FLAG_ICON_SIZE = 1 << 1;
+    public static final int CHANGE_FLAG_ICON_PARAMS = 1 << 1;
+
+    public static final String KEY_ICON_PATH_REF = "pref_icon_shape_path";
 
     // Constants that affects the interpolation curve between statically defined device profile
     // buckets.
-    private static float KNEARESTNEIGHBOR = 3;
-    private static float WEIGHT_POWER = 5;
+    private static final float KNEARESTNEIGHBOR = 3;
+    private static final float WEIGHT_POWER = 5;
 
     // used to offset float not being able to express extremely small weights in extreme cases.
-    private static float WEIGHT_EFFICIENT = 100000f;
+    private static final float WEIGHT_EFFICIENT = 100000f;
+
+    private static final int CONFIG_ICON_MASK_RES_ID = Resources.getSystem().getIdentifier(
+            "config_icon_mask", "string", "android");
 
     /**
      * Number of icons per row and column in the workspace.
@@ -77,6 +85,7 @@
     public int numFolderRows;
     public int numFolderColumns;
     public float iconSize;
+    public String iconShapePath;
     public float landscapeIconSize;
     public int iconBitmapSize;
     public int fillResIconDpi;
@@ -107,6 +116,7 @@
         numFolderRows = p.numFolderRows;
         numFolderColumns = p.numFolderColumns;
         iconSize = p.iconSize;
+        iconShapePath = p.iconShapePath;
         landscapeIconSize = p.landscapeIconSize;
         iconTextSize = p.iconTextSize;
         numHotseatIcons = p.numHotseatIcons;
@@ -116,11 +126,22 @@
 
     @TargetApi(23)
     private InvariantDeviceProfile(Context context) {
-        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRIP_NAME, null));
+        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null));
         mConfigMonitor = new ConfigMonitor(context,
                 APPLY_CONFIG_AT_RUNTIME.get() ? this::onConfigChanged : this::killProcess);
     }
 
+    /**
+     * Retrieve system defined or RRO overriden icon shape.
+     */
+    private static String getIconShapePath(Context context) {
+        if (CONFIG_ICON_MASK_RES_ID == 0) {
+            Log.e(TAG, "Icon mask res identifier failed to retrieve.");
+            return "";
+        }
+        return context.getResources().getString(CONFIG_ICON_MASK_RES_ID);
+    }
+
     private void initGrid(Context context, String gridName) {
         WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
         Display display = wm.getDefaultDisplay();
@@ -152,10 +173,11 @@
         numFolderColumns = closestProfile.numFolderColumns;
         if (!closestProfile.name.equals(gridName)) {
             Utilities.getPrefs(context).edit()
-                    .putString(KEY_IDP_GRIP_NAME, closestProfile.name).apply();
+                    .putString(KEY_IDP_GRID_NAME, closestProfile.name).apply();
         }
 
         iconSize = interpolatedDisplayOption.iconSize;
+        iconShapePath = getIconShapePath(context);
         landscapeIconSize = interpolatedDisplayOption.landscapeIconSize;
         iconBitmapSize = Utilities.pxFromDp(iconSize, dm);
         iconTextSize = interpolatedDisplayOption.iconTextSize;
@@ -197,12 +219,26 @@
         android.os.Process.killProcess(android.os.Process.myPid());
     }
 
+    public void verifyConfigChangedInBackground(final Context context) {
+
+        String savedIconMaskPath = getDevicePrefs(context).getString(KEY_ICON_PATH_REF, "");
+        // Good place to check if grid size changed in themepicker when launcher was dead.
+        if (savedIconMaskPath.isEmpty()) {
+            getDevicePrefs(context).edit().putString(KEY_ICON_PATH_REF, getIconShapePath(context))
+                    .apply();
+        } else if (!savedIconMaskPath.equals(getIconShapePath(context))) {
+            getDevicePrefs(context).edit().putString(KEY_ICON_PATH_REF, getIconShapePath(context))
+                    .apply();
+            apply(context, CHANGE_FLAG_ICON_PARAMS);
+        }
+    }
+
     private void onConfigChanged(Context context) {
         // Config changes, what shall we do?
         InvariantDeviceProfile oldProfile = new InvariantDeviceProfile(this);
 
         // Re-init grid
-        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRIP_NAME, null));
+        initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null));
 
         int changeFlags = 0;
         if (numRows != oldProfile.numRows ||
@@ -213,10 +249,14 @@
             changeFlags |= CHANGE_FLAG_GRID;
         }
 
-        if (iconSize != oldProfile.iconSize || iconBitmapSize != oldProfile.iconBitmapSize) {
-            changeFlags |= CHANGE_FLAG_ICON_SIZE;
+        if (iconSize != oldProfile.iconSize || iconBitmapSize != oldProfile.iconBitmapSize ||
+                !iconShapePath.equals(oldProfile.iconShapePath)) {
+            changeFlags |= CHANGE_FLAG_ICON_PARAMS;
         }
+        apply(context, changeFlags);
+    }
 
+    private void apply(Context context, int changeFlags) {
         // Create a new config monitor
         mConfigMonitor.unregister();
         mConfigMonitor = new ConfigMonitor(context, this::onConfigChanged);
@@ -231,7 +271,6 @@
         try (XmlResourceParser parser = context.getResources().getXml(R.xml.device_profiles)) {
             final int depth = parser.getDepth();
             int type;
-
             while (((type = parser.next()) != XmlPullParser.END_TAG ||
                     parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) {
                 if ((type == XmlPullParser.START_TAG) && "grid-option".equals(parser.getName())) {
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 182a4ee..74fa447 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -16,14 +16,15 @@
 
 package com.android.launcher3;
 
+import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_PARAMS;
 import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
-import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_ICON_SIZE;
 
 import android.content.ComponentName;
 import android.content.ContentProviderClient;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.os.Handler;
 import android.util.Log;
 
 import com.android.launcher3.compat.LauncherAppsCompat;
@@ -97,6 +98,7 @@
         mContext.registerReceiver(mModel, filter);
         UserManagerCompat.getInstance(mContext).enableAndResetCache();
         mInvariantDeviceProfile.addOnChangeListener(this::onIdpChanged);
+        new Handler().post( () -> mInvariantDeviceProfile.verifyConfigChangedInBackground(context));
 
         if (!mContext.getResources().getBoolean(R.bool.notification_dots_enabled)) {
             mNotificationDotsObserver = null;
@@ -121,7 +123,7 @@
             return;
         }
 
-        if ((changeFlags & CHANGE_FLAG_ICON_SIZE) != 0) {
+        if ((changeFlags & CHANGE_FLAG_ICON_PARAMS) != 0) {
             LauncherIcons.clearPool();
             mIconCache.updateIconParams(idp.fillResIconDpi, idp.iconBitmapSize);
         }
diff --git a/src/com/android/launcher3/config/BaseFlags.java b/src/com/android/launcher3/config/BaseFlags.java
index 3f420fa..03fdc64 100644
--- a/src/com/android/launcher3/config/BaseFlags.java
+++ b/src/com/android/launcher3/config/BaseFlags.java
@@ -93,10 +93,10 @@
      * Feature flag to handle define config changes dynamically instead of killing the process.
      */
     public static final TogglableFlag APPLY_CONFIG_AT_RUNTIME = new TogglableFlag(
-            "APPLY_CONFIG_AT_RUNTIME", false, "Apply display changes dynamically");
+            "APPLY_CONFIG_AT_RUNTIME", true, "Apply display changes dynamically");
 
     public static final TogglableFlag ENABLE_TASK_STABILIZER = new TogglableFlag(
-            "ENABLE_TASK_STABILIZER", true, "Stable task list across fast task switches");
+            "ENABLE_TASK_STABILIZER", false, "Stable task list across fast task switches");
 
     public static void initialize(Context context) {
         // Avoid the disk read for user builds
diff --git a/src/com/android/launcher3/util/ConfigMonitor.java b/src/com/android/launcher3/util/ConfigMonitor.java
index 717acdc..607afab 100644
--- a/src/com/android/launcher3/util/ConfigMonitor.java
+++ b/src/com/android/launcher3/util/ConfigMonitor.java
@@ -29,6 +29,7 @@
 import android.view.Display;
 import android.view.WindowManager;
 
+import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.MainThreadExecutor;
 import com.android.launcher3.Utilities.Consumer;
 
@@ -40,6 +41,8 @@
 
     private static final String TAG = "ConfigMonitor";
 
+    private final String ACTION_OVERLAY_CHANGED = "android.intent.action.OVERLAY_CHANGED";
+
     private final Point mTmpPoint1 = new Point();
     private final Point mTmpPoint2 = new Point();
 
@@ -72,7 +75,15 @@
 
         mCallback = callback;
 
+        // Listen for configuration change
         mContext.registerReceiver(this, new IntentFilter(Intent.ACTION_CONFIGURATION_CHANGED));
+
+        // Listen for {@link OverlayManager} change
+        IntentFilter filter = new IntentFilter(ACTION_OVERLAY_CHANGED);
+        filter.addDataScheme("package");
+        mContext.registerReceiver(this, filter);
+
+        // Listen for display manager change
         mContext.getSystemService(DisplayManager.class)
                 .registerDisplayListener(this, new Handler(UiThreadHelper.getBackgroundLooper()));
     }
@@ -80,8 +91,14 @@
     @Override
     public void onReceive(Context context, Intent intent) {
         Configuration config = context.getResources().getConfiguration();
+        // TODO: when overlay manager service encodes more information to the Uri such as category
+        // of the overlay, only listen to the ones that are of interest to launcher.
+        if (intent != null && ACTION_OVERLAY_CHANGED.equals(intent.getAction())) {
+            Log.d(TAG, "Overlay changed.");
+            notifyChange();
+        }
         if (mFontScale != config.fontScale || mDensity != config.densityDpi) {
-            Log.d(TAG, "Configuration changed");
+            Log.d(TAG, "Configuration changed.");
             notifyChange();
         }
     }
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index 0be5f11..ebab122 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -18,7 +18,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.android.launcher3.tests">
 
-    <uses-sdk android:targetSdkVersion="25" android:minSdkVersion="21"
+    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"
               tools:overrideLibrary="android.support.test.uiautomator.v18"/>
 
     <application android:debuggable="true">
diff --git a/tests/dummy_app/AndroidManifest.xml b/tests/dummy_app/AndroidManifest.xml
index 0546015..9d0a74a 100644
--- a/tests/dummy_app/AndroidManifest.xml
+++ b/tests/dummy_app/AndroidManifest.xml
@@ -21,7 +21,7 @@
      to come from a domain that you own or have control over. -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.android.aardwolf">
-    <uses-sdk android:targetSdkVersion="25" android:minSdkVersion="21"/>
+    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"/>
     <application android:label="Aardwolf">
         <activity
             android:name="Activity1"