diff --git a/quickstep/src/com/android/quickstep/TestInformationProvider.java b/quickstep/src/com/android/quickstep/TestInformationProvider.java
index 0c478d2..0c93dd6 100644
--- a/quickstep/src/com/android/quickstep/TestInformationProvider.java
+++ b/quickstep/src/com/android/quickstep/TestInformationProvider.java
@@ -25,6 +25,9 @@
 
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.LauncherState;
 import com.android.launcher3.TestProtocol;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.uioverrides.OverviewState;
@@ -82,6 +85,21 @@
                     response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD, (int) swipeHeight);
                     break;
                 }
+                case TestProtocol.REQUEST_ALL_APPS_TO_OVERVIEW_SWIPE_HEIGHT: {
+                    final LauncherAppState launcherAppState =
+                            LauncherAppState.getInstanceNoCreate();
+                    if (launcherAppState == null) return null;
+
+                    final Launcher launcher = (Launcher) launcherAppState.getModel().getCallback();
+                    if (launcher == null) return null;
+
+                    final float progress = LauncherState.OVERVIEW.getVerticalProgress(launcher)
+                            - LauncherState.ALL_APPS.getVerticalProgress(launcher);
+                    final float distance =
+                            launcher.getAllAppsController().getShiftRange() * progress;
+                    response.putInt(TestProtocol.TEST_INFO_RESPONSE_FIELD, (int) distance);
+                    break;
+                }
             }
             return response;
         }
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 6582df2..f081303 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -20,7 +20,10 @@
 import static com.android.launcher3.Utilities.getDevicePrefs;
 
 import android.annotation.TargetApi;
+import android.content.BroadcastReceiver;
 import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
@@ -114,6 +117,7 @@
 
     private final ArrayList<OnIDPChangeListener> mChangeListeners = new ArrayList<>();
     private ConfigMonitor mConfigMonitor;
+    private OverlayMonitor mOverlayMonitor;
 
     @VisibleForTesting
     public InvariantDeviceProfile() {}
@@ -131,6 +135,7 @@
         defaultLayoutId = p.defaultLayoutId;
         demoModeLayoutId = p.demoModeLayoutId;
         mExtraAttrs = p.mExtraAttrs;
+        mOverlayMonitor = p.mOverlayMonitor;
     }
 
     @TargetApi(23)
@@ -138,8 +143,12 @@
         initGrid(context, Utilities.getPrefs(context).getString(KEY_IDP_GRID_NAME, null));
         mConfigMonitor = new ConfigMonitor(context,
                 APPLY_CONFIG_AT_RUNTIME.get() ? this::onConfigChanged : this::killProcess);
+        mOverlayMonitor = new OverlayMonitor(context);
     }
 
+    /**
+     * This constructor should NOT have any monitors by design.
+     */
     public InvariantDeviceProfile(Context context, String gridName) {
         String newName = initGrid(context, gridName);
         if (newName == null || !newName.equals(gridName)) {
@@ -555,4 +564,20 @@
             return this;
         }
     }
+
+    private class OverlayMonitor extends BroadcastReceiver {
+
+        private final String ACTION_OVERLAY_CHANGED = "android.intent.action.OVERLAY_CHANGED";
+
+        OverlayMonitor(Context context) {
+            IntentFilter filter = new IntentFilter(ACTION_OVERLAY_CHANGED);
+            filter.addDataScheme("package");
+            context.registerReceiver(this, filter);
+        }
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            onConfigChanged(context);
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/com/android/launcher3/TestProtocol.java b/src/com/android/launcher3/TestProtocol.java
index 5f752cc..a4e4227 100644
--- a/src/com/android/launcher3/TestProtocol.java
+++ b/src/com/android/launcher3/TestProtocol.java
@@ -36,4 +36,6 @@
             "home-to-overview-swipe-height";
     public static final String REQUEST_BACKGROUND_TO_OVERVIEW_SWIPE_HEIGHT =
             "background-to-overview-swipe-height";
+    public static final String REQUEST_ALL_APPS_TO_OVERVIEW_SWIPE_HEIGHT =
+            "all-apps-to-overview-swipe-height";
 }
diff --git a/src/com/android/launcher3/util/ConfigMonitor.java b/src/com/android/launcher3/util/ConfigMonitor.java
index 12280f8..12d35e9 100644
--- a/src/com/android/launcher3/util/ConfigMonitor.java
+++ b/src/com/android/launcher3/util/ConfigMonitor.java
@@ -41,8 +41,6 @@
 
     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();
 
@@ -78,11 +76,6 @@
         // 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()));
@@ -91,12 +84,6 @@
     @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.");
             notifyChange();
diff --git a/src/com/android/launcher3/views/OptionsPopupView.java b/src/com/android/launcher3/views/OptionsPopupView.java
index 48cf9e8..e259cfe 100644
--- a/src/com/android/launcher3/views/OptionsPopupView.java
+++ b/src/com/android/launcher3/views/OptionsPopupView.java
@@ -18,8 +18,10 @@
 import static com.android.launcher3.Utilities.EXTRA_WALLPAPER_FLAVOR;
 import static com.android.launcher3.Utilities.EXTRA_WALLPAPER_OFFSET;
 
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.ResolveInfo;
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.text.TextUtils;
@@ -150,7 +152,7 @@
         RectF target = new RectF(x - halfSize, y - halfSize, x + halfSize, y + halfSize);
 
         ArrayList<OptionItem> options = new ArrayList<>();
-        int res = FeatureFlags.STYLE_WALLPAPER.get() ?
+        int res = FeatureFlags.STYLE_WALLPAPER.get() && existsStyleWallpapers(launcher) ?
                 R.string.styles_wallpaper_button_text : R.string.wallpaper_button_text;
         options.add(new OptionItem(res, R.drawable.ic_wallpaper,
                 ControlType.WALLPAPER_BUTTON, OptionsPopupView::startWallpaperPicker));
@@ -164,6 +166,14 @@
         show(launcher, target, options);
     }
 
+    private static boolean existsStyleWallpapers(Launcher launcher) {
+        Intent intent = new Intent(Intent.ACTION_SET_WALLPAPER);
+        intent.setComponent(new ComponentName(launcher.getString(R.string.wallpaper_picker_package),
+                "com.android.customization.picker.CustomizationPickerActivity"));
+        ResolveInfo ri = launcher.getPackageManager().resolveActivity(intent, 0);
+        return ri != null;
+    }
+
     public static boolean onWidgetsClicked(View view) {
         return openWidgets(Launcher.getLauncher(view.getContext()));
     }
diff --git a/tests/tapl/com/android/launcher3/tapl/AllAppsFromOverview.java b/tests/tapl/com/android/launcher3/tapl/AllAppsFromOverview.java
index 2642815..dcc51b5 100644
--- a/tests/tapl/com/android/launcher3/tapl/AllAppsFromOverview.java
+++ b/tests/tapl/com/android/launcher3/tapl/AllAppsFromOverview.java
@@ -23,6 +23,8 @@
 import androidx.annotation.NonNull;
 import androidx.test.uiautomator.UiObject2;
 
+import com.android.launcher3.TestProtocol;
+
 /**
  * Operations on AllApps opened from Overview.
  */
@@ -45,7 +47,11 @@
         final UiObject2 qsb = mLauncher.waitForObjectInContainer(
                 allAppsContainer, "search_container_all_apps");
         final Point start = qsb.getVisibleCenter();
-        final int endY = (int) (mLauncher.getDevice().getDisplayHeight() * 0.6);
+        final int swipeHeight = mLauncher.getTestInfo(
+                TestProtocol.REQUEST_ALL_APPS_TO_OVERVIEW_SWIPE_HEIGHT).
+                getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
+
+        final int endY = start.y + swipeHeight + mLauncher.getTouchSlop();
         LauncherInstrumentation.log("AllAppsFromOverview.switchBackToOverview before swipe");
         mLauncher.swipe(start.x, start.y, start.x, endY, OVERVIEW_STATE_ORDINAL);
 
diff --git a/tests/tapl/com/android/launcher3/tapl/Background.java b/tests/tapl/com/android/launcher3/tapl/Background.java
index 7031cd3..2cde8ec 100644
--- a/tests/tapl/com/android/launcher3/tapl/Background.java
+++ b/tests/tapl/com/android/launcher3/tapl/Background.java
@@ -22,8 +22,6 @@
 
 import static org.junit.Assert.assertTrue;
 
-import android.view.ViewConfiguration;
-
 import androidx.annotation.NonNull;
 import androidx.test.uiautomator.By;
 import androidx.test.uiautomator.Until;
@@ -67,9 +65,11 @@
             final int swipeHeight = mLauncher.getTestInfo(
                     getSwipeHeightRequestName()).
                     getInt(TestProtocol.TEST_INFO_RESPONSE_FIELD);
-            final int slop = ViewConfiguration.get(mLauncher.getContext()).getScaledTouchSlop();
 
-            mLauncher.swipe(centerX, startY, centerX, startY - swipeHeight - slop, expectedState);
+            mLauncher.swipe(
+                    centerX, startY, centerX,
+                    startY - swipeHeight - mLauncher.getTouchSlop(),
+                    expectedState);
         } else {
             mLauncher.waitForSystemUiObject("recent_apps").click();
         }
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index ce37348..e3850ff 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -32,6 +32,7 @@
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.Surface;
+import android.view.ViewConfiguration;
 import android.view.accessibility.AccessibilityEvent;
 
 import androidx.annotation.NonNull;
@@ -468,4 +469,8 @@
     float getDisplayDensity() {
         return mInstrumentation.getTargetContext().getResources().getDisplayMetrics().density;
     }
+
+    int getTouchSlop() {
+        return ViewConfiguration.get(getContext()).getScaledTouchSlop();
+    }
 }
\ No newline at end of file