diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 78e994f..de42398 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -45,6 +45,7 @@
 import "frameworks/base/core/proto/android/stats/devicepolicy/device_policy.proto";
 import "frameworks/base/core/proto/android/stats/devicepolicy/device_policy_enums.proto";
 import "frameworks/base/core/proto/android/stats/launcher/launcher.proto";
+import "frameworks/base/core/proto/android/stats/style/style_enums.proto";
 import "frameworks/base/core/proto/android/telecomm/enums.proto";
 import "frameworks/base/core/proto/android/telephony/enums.proto";
 import "frameworks/base/core/proto/android/view/enums.proto";
@@ -247,6 +248,7 @@
         AssistGestureProgressReported assist_gesture_progress_reported = 176;
         TouchGestureClassified touch_gesture_classified = 177;
         HiddenApiUsed hidden_api_used = 178 [(allow_from_any_uid) = true];
+        StyleUIChanged style_ui_changed = 179;
     }
 
     // Pulled events will start at field 10000.
@@ -2349,6 +2351,17 @@
     optional bool is_swipe_up_enabled = 5;
 }
 
+message StyleUIChanged {
+    optional android.stats.style.Action action = 1;
+    optional int32 color_package_hash = 2;
+    optional int32 font_package_hash  = 3;
+    optional int32 shape_package_hash = 4;
+    optional int32 clock_package_hash = 5;
+    optional int32 launcher_grid = 6;
+    optional int32 wallpaper_category_hash = 7;
+    optional int32 wallpaper_id_hash = 8;
+}
+
 /**
  * Logs when Settings UI has changed.
  *
diff --git a/core/proto/android/stats/style/Android.bp b/core/proto/android/stats/style/Android.bp
new file mode 100644
index 0000000..f085a52
--- /dev/null
+++ b/core/proto/android/stats/style/Android.bp
@@ -0,0 +1,27 @@
+// Copyright (C) 2019 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.
+
+java_library {
+    name: "styleprotosnano",
+    proto: {
+        type: "nano",
+        output_params: ["store_unknown_fields=true"],
+        include_dirs: ["external/protobuf/src"],
+    },
+
+    sdk_version: "current",
+    srcs: [
+        "*.proto",
+    ],
+}
diff --git a/core/proto/android/stats/style/style_enums.proto b/core/proto/android/stats/style/style_enums.proto
new file mode 100644
index 0000000..b0e4391
--- /dev/null
+++ b/core/proto/android/stats/style/style_enums.proto
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+syntax = "proto2";
+package android.stats.style;
+option java_multiple_files = true;
+
+enum Action {
+    DEFAULT_ACTION = 0;
+    ONRESUME = 1;
+    ONSTOP = 2;
+    PICKER_SELECT = 3;
+    PICKER_APPLIED = 4;
+    WALLPAPER_OPEN_CATEGORY = 5;
+    WALLPAPER_SELECT = 6;
+    WALLPAPER_APPLIED = 7;
+    WALLPAPER_EXPLORE = 8;
+    WALLPAPER_DOWNLOAD = 9;
+    WALLPAPER_REMOVE = 10;
+}
+
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/StatsLogCompat.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/StatsLogCompat.java
index 5bc1f25..d17725f 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/StatsLogCompat.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/StatsLogCompat.java
@@ -32,4 +32,17 @@
         StatsLog.write(19, action, srcState, dstState, extension,
                 swipeUpEnabled);
     }
+
+    /**
+     *  StatsLog.write(StatsLog.STYLE_EVENT, action, colorPackageHash,
+     *           fontPackageHash, shapePackageHash, clockPackageHash,
+     *           launcherGrid, wallpaperCategoryHash, wallpaperIdHash);
+     */
+    public static void write(int action, int colorPackageHash,
+            int fontPackageHash, int shapePackageHash, int clockPackageHash,
+            int launcherGrid, int wallpaperCategoryHash, int wallpaperIdHash) {
+        StatsLog.write(179, action, colorPackageHash,
+                fontPackageHash, shapePackageHash, clockPackageHash,
+                launcherGrid, wallpaperCategoryHash, wallpaperIdHash);
+    }
 }