diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 834b5a7..b6cc6d6 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -24,6 +24,8 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.content.pm.LauncherApps;
 import android.os.UserHandle;
 import android.util.Log;
@@ -45,6 +47,7 @@
 import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.util.SettingsCache;
 import com.android.launcher3.util.SimpleBroadcastReceiver;
+import com.android.launcher3.util.Themes;
 import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 public class LauncherAppState {
@@ -108,6 +111,12 @@
                 observer, MODEL_EXECUTOR.getHandler());
         mOnTerminateCallback.add(iconChangeTracker::close);
         MODEL_EXECUTOR.execute(observer::verifyIconChanged);
+        if (ENABLE_THEMED_ICONS.get()) {
+            SharedPreferences prefs = Utilities.getPrefs(mContext);
+            prefs.registerOnSharedPreferenceChangeListener(observer);
+            mOnTerminateCallback.add(
+                    () -> prefs.unregisterOnSharedPreferenceChangeListener(observer));
+        }
 
         InstallSessionTracker installSessionTracker =
                 InstallSessionHelper.INSTANCE.get(context).registerInstallTracker(mModel);
@@ -128,7 +137,7 @@
         mContext = context;
 
         mInvariantDeviceProfile = InvariantDeviceProfile.INSTANCE.get(context);
-        mIconProvider =  new IconProvider(context, ENABLE_THEMED_ICONS.get());
+        mIconProvider =  new IconProvider(context, Themes.isThemedIconEnabled(context));
         mIconCache = new IconCache(mContext, mInvariantDeviceProfile,
                 iconCacheFileName, mIconProvider);
         mWidgetCache = new WidgetPreviewLoader(mContext, mIconCache);
@@ -187,7 +196,8 @@
         return InvariantDeviceProfile.INSTANCE.get(context);
     }
 
-    private class IconObserver implements IconProvider.IconChangeListener {
+    private class IconObserver
+            implements IconProvider.IconChangeListener, OnSharedPreferenceChangeListener {
 
         @Override
         public void onAppIconChanged(String packageName, UserHandle user) {
@@ -207,5 +217,13 @@
                 onSystemIconStateChanged(iconState);
             }
         }
+
+        @Override
+        public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
+            if (Themes.KEY_THEMED_ICONS.equals(key)) {
+                mIconProvider.setIconThemeSupported(Themes.isThemedIconEnabled(mContext));
+                verifyIconChanged();
+            }
+        }
     }
 }
diff --git a/src/com/android/launcher3/graphics/GridCustomizationsProvider.java b/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
index cb42e7a..a03e48d 100644
--- a/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
+++ b/src/com/android/launcher3/graphics/GridCustomizationsProvider.java
@@ -1,5 +1,9 @@
 package com.android.launcher3.graphics;
 
+import static com.android.launcher3.Utilities.getPrefs;
+import static com.android.launcher3.util.Themes.KEY_THEMED_ICONS;
+import static com.android.launcher3.util.Themes.isThemedIconEnabled;
+
 import android.content.ContentProvider;
 import android.content.ContentValues;
 import android.content.pm.PackageManager;
@@ -15,6 +19,7 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile.GridOption;
 import com.android.launcher3.R;
+import com.android.launcher3.config.FeatureFlags;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -55,6 +60,11 @@
 
     private static final String METHOD_GET_PREVIEW = "get_preview";
 
+    private static final String GET_ICON_THEMED = "/get_icon_themed";
+    private static final String SET_ICON_THEMED = "/set_icon_themed";
+    private static final String ICON_THEMED = "/icon_themed";
+    private static final String BOOLEAN_VALUE = "boolean_value";
+
     @Override
     public boolean onCreate() {
         return true;
@@ -63,22 +73,31 @@
     @Override
     public Cursor query(Uri uri, String[] projection, String selection,
             String[] selectionArgs, String sortOrder) {
-        if (!KEY_LIST_OPTIONS.equals(uri.getPath())) {
-            return null;
+        switch (uri.getPath()) {
+            case KEY_LIST_OPTIONS: {
+                MatrixCursor cursor = new MatrixCursor(new String[] {
+                        KEY_NAME, KEY_ROWS, KEY_COLS, KEY_PREVIEW_COUNT, KEY_IS_DEFAULT});
+                InvariantDeviceProfile idp = InvariantDeviceProfile.INSTANCE.get(getContext());
+                for (GridOption gridOption : parseAllGridOptions()) {
+                    cursor.newRow()
+                            .add(KEY_NAME, gridOption.name)
+                            .add(KEY_ROWS, gridOption.numRows)
+                            .add(KEY_COLS, gridOption.numColumns)
+                            .add(KEY_PREVIEW_COUNT, 1)
+                            .add(KEY_IS_DEFAULT, idp.numColumns == gridOption.numColumns
+                                    && idp.numRows == gridOption.numRows);
+                }
+                return cursor;
+            }
+            case GET_ICON_THEMED:
+            case ICON_THEMED: {
+                MatrixCursor cursor = new MatrixCursor(new String[] {BOOLEAN_VALUE});
+                cursor.newRow().add(BOOLEAN_VALUE, isThemedIconEnabled(getContext()) ? 1 : 0);
+                return cursor;
+            }
+            default:
+                return null;
         }
-        MatrixCursor cursor = new MatrixCursor(new String[] {
-                KEY_NAME, KEY_ROWS, KEY_COLS, KEY_PREVIEW_COUNT, KEY_IS_DEFAULT});
-        InvariantDeviceProfile idp = InvariantDeviceProfile.INSTANCE.get(getContext());
-        for (GridOption gridOption : parseAllGridOptions()) {
-            cursor.newRow()
-                    .add(KEY_NAME, gridOption.name)
-                    .add(KEY_ROWS, gridOption.numRows)
-                    .add(KEY_COLS, gridOption.numColumns)
-                    .add(KEY_PREVIEW_COUNT, 1)
-                    .add(KEY_IS_DEFAULT, idp.numColumns == gridOption.numColumns
-                            && idp.numRows == gridOption.numRows);
-        }
-        return cursor;
     }
 
     private List<GridOption> parseAllGridOptions() {
@@ -117,25 +136,37 @@
 
     @Override
     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
-        if (!KEY_DEFAULT_GRID.equals(uri.getPath())) {
-            return 0;
-        }
+        switch (uri.getPath()) {
+            case KEY_DEFAULT_GRID: {
+                String gridName = values.getAsString(KEY_NAME);
+                // Verify that this is a valid grid option
+                GridOption match = null;
+                for (GridOption option : parseAllGridOptions()) {
+                    if (option.name.equals(gridName)) {
+                        match = option;
+                        break;
+                    }
+                }
+                if (match == null) {
+                    return 0;
+                }
 
-        String gridName = values.getAsString(KEY_NAME);
-        // Verify that this is a valid grid option
-        GridOption match = null;
-        for (GridOption option : parseAllGridOptions()) {
-            if (option.name.equals(gridName)) {
-                match = option;
-                break;
+                InvariantDeviceProfile.INSTANCE.get(getContext())
+                        .setCurrentGrid(getContext(), gridName);
+                return 1;
             }
+            case ICON_THEMED:
+            case SET_ICON_THEMED: {
+                if (FeatureFlags.ENABLE_THEMED_ICONS.get()) {
+                    getPrefs(getContext()).edit()
+                            .putBoolean(KEY_THEMED_ICONS, values.getAsBoolean(BOOLEAN_VALUE))
+                            .apply();
+                }
+                return 1;
+            }
+            default:
+                return 0;
         }
-        if (match == null) {
-            return 0;
-        }
-
-        InvariantDeviceProfile.INSTANCE.get(getContext()).setCurrentGrid(getContext(), gridName);
-        return 1;
     }
 
     @Override
diff --git a/src/com/android/launcher3/util/Themes.java b/src/com/android/launcher3/util/Themes.java
index 8243dd4..53a584d 100644
--- a/src/com/android/launcher3/util/Themes.java
+++ b/src/com/android/launcher3/util/Themes.java
@@ -32,6 +32,7 @@
 
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.GraphicsUtils;
 
 /**
@@ -40,6 +41,8 @@
 @SuppressWarnings("NewApi")
 public class Themes {
 
+    public static final String KEY_THEMED_ICONS = "themed_icons";
+
     public static int getActivityThemeRes(Context context) {
         final int colorHints;
         if (Utilities.ATLEAST_P) {
@@ -67,6 +70,13 @@
         }
     }
 
+    /**
+     * Returns true if workspace icon theming is enabled
+     */
+    public static boolean isThemedIconEnabled(Context context) {
+        return FeatureFlags.ENABLE_THEMED_ICONS.get()
+                && Utilities.getPrefs(context).getBoolean(KEY_THEMED_ICONS, false);
+    }
 
     public static String getDefaultBodyFont(Context context) {
         TypedArray ta = context.obtainStyledAttributes(android.R.style.TextAppearance_DeviceDefault,