diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 3ee451ab621a8..e322acc5d7311 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -195,6 +195,9 @@
     <!-- to access instant apps -->
     <uses-permission android:name="android.permission.ACCESS_INSTANT_APPS" />
 
+    <!-- to change themes - light or dark -->
+    <uses-permission android:name="android.permission.CHANGE_OVERLAY_PACKAGES" />
+
     <application
         android:name=".SystemUIApplication"
         android:persistent="true"
diff --git a/packages/SystemUI/res-keyguard/drawable/pin_divider.xml b/packages/SystemUI/res-keyguard/drawable/pin_divider.xml
new file mode 100644
index 0000000000000..39104b575ecd9
--- /dev/null
+++ b/packages/SystemUI/res-keyguard/drawable/pin_divider.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
+  -->
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/pin_divider_color" />
+</shape>
\ No newline at end of file
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_password_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_password_view.xml
index 29c93d5adb03b..26a179a435313 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_password_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_password_view.xml
@@ -54,6 +54,7 @@
              android:textStyle="normal"
              android:inputType="textPassword"
              android:textSize="16sp"
+             android:textColor="?attr/bgProtectTextColor"
              android:textAppearance="?android:attr/textAppearanceMedium"
              android:imeOptions="flagForceAscii|actionDone"
              android:maxLength="500"
@@ -67,6 +68,7 @@
              android:contentDescription="@string/accessibility_ime_switch_button"
              android:clickable="true"
              android:padding="8dip"
+             android:tint="@color/background_protected"
              android:layout_gravity="end|center_vertical"
              android:background="?android:attr/selectableItemBackground"
              android:visibility="gone"
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
index e75f3c15e9ef4..9a9716277662a 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml
@@ -54,6 +54,7 @@
                     android:layout_centerHorizontal="true"
                     android:layout_marginRight="72dp"
                     androidprv:scaledTextSize="28"
+                    android:textColor="?attr/bgProtectTextColor"
                     android:contentDescription="@string/keyguard_accessibility_pin_area"
                     />
             <ImageButton
@@ -65,19 +66,20 @@
                     android:clickable="true"
                     android:paddingTop="8dip"
                     android:paddingBottom="8dip"
-                    android:paddingRight="8dp"
+                    android:paddingRight="0dp"
                     android:paddingLeft="24dp"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_delete"
                     android:layout_alignEnd="@+id/pinEntry"
                     android:layout_alignParentRight="true"
+                    android:tint="@color/pin_delete_color"
                     />
             <View
                     android:id="@+id/divider"
                     android:layout_width="match_parent"
                     android:layout_height="1dp"
                     android:layout_alignParentBottom="true"
-                    android:background="#28FFFFFF"
+                    android:background="@drawable/pin_divider"
                     />
         </com.android.keyguard.AlphaOptimizedRelativeLayout>
         <LinearLayout
@@ -203,6 +205,7 @@
                     android:layout_weight="1"
                     android:paddingBottom="11sp"
                     android:src="@drawable/ic_done_wht"
+                    style="@style/Keyguard.ImageButton.NumPadEnter"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_enter"
                     />
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_sim_pin_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_sim_pin_view.xml
index fd681ca690c36..7d47881ddd0da 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_sim_pin_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_sim_pin_view.xml
@@ -66,6 +66,7 @@
                     android:layout_centerHorizontal="true"
                     android:layout_marginRight="72dp"
                     androidprv:scaledTextSize="28"
+                    android:textColor="?attr/bgProtectTextColor"
                     android:contentDescription="@string/keyguard_accessibility_sim_pin_area"
                     />
             <ImageButton
@@ -77,19 +78,20 @@
                     android:clickable="true"
                     android:paddingTop="8dip"
                     android:paddingBottom="8dip"
-                    android:paddingRight="8dp"
+                    android:paddingRight="0dp"
                     android:paddingLeft="24dp"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_delete"
                     android:layout_alignEnd="@+id/pinEntry"
                     android:layout_alignParentRight="true"
+                    android:tint="@color/pin_delete_color"
                     />
             <View
                     android:id="@+id/divider"
                     android:layout_width="match_parent"
                     android:layout_height="1dp"
                     android:layout_alignParentBottom="true"
-                    android:background="#28FFFFFF"
+                    android:background="@drawable/pin_divider"
                     />
         </RelativeLayout>
         <LinearLayout
@@ -211,6 +213,7 @@
                     android:layout_weight="1"
                     android:paddingBottom="11sp"
                     android:src="@drawable/ic_done_wht"
+                    style="@style/Keyguard.ImageButton.NumPadEnter"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_enter"
                     />
diff --git a/packages/SystemUI/res-keyguard/layout/keyguard_sim_puk_view.xml b/packages/SystemUI/res-keyguard/layout/keyguard_sim_puk_view.xml
index 040b4297916a1..aaa53ee66357b 100644
--- a/packages/SystemUI/res-keyguard/layout/keyguard_sim_puk_view.xml
+++ b/packages/SystemUI/res-keyguard/layout/keyguard_sim_puk_view.xml
@@ -67,6 +67,7 @@
                     android:layout_centerHorizontal="true"
                     android:layout_marginRight="72dp"
                     androidprv:scaledTextSize="28"
+                    android:textColor="?attr/bgProtectTextColor"
                     android:contentDescription="@string/keyguard_accessibility_sim_puk_area"
                     />
             <ImageButton
@@ -78,19 +79,20 @@
                     android:clickable="true"
                     android:paddingTop="8dip"
                     android:paddingBottom="8dip"
-                    android:paddingRight="8dp"
+                    android:paddingRight="0dp"
                     android:paddingLeft="24dp"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_delete"
                     android:layout_alignEnd="@+id/pinEntry"
                     android:layout_alignParentRight="true"
+                    android:tint="@color/pin_delete_color"
                     />
             <View
                     android:id="@+id/divider"
                     android:layout_width="match_parent"
                     android:layout_height="1dp"
                     android:layout_alignParentBottom="true"
-                    android:background="#28FFFFFF"
+                    android:background="@drawable/pin_divider"
                     />
         </RelativeLayout>
         <LinearLayout
@@ -212,6 +214,7 @@
                     android:layout_weight="1"
                     android:paddingBottom="11sp"
                     android:src="@drawable/ic_done_wht"
+                    style="@style/Keyguard.ImageButton.NumPadEnter"
                     android:background="@drawable/ripple_drawable"
                     android:contentDescription="@string/keyboardview_keycode_enter"
                     />
diff --git a/packages/SystemUI/res-keyguard/values/attrs.xml b/packages/SystemUI/res-keyguard/values/attrs.xml
index 7cfe6316084f4..d3d60a1e18d24 100644
--- a/packages/SystemUI/res-keyguard/values/attrs.xml
+++ b/packages/SystemUI/res-keyguard/values/attrs.xml
@@ -35,9 +35,13 @@
         <attr name="android:gravity" />
         <attr name="dotSize" format="dimension" />
         <attr name="charPadding" format="dimension" />
+        <attr name="android:textColor" format="color" />
     </declare-styleable>
 
     <declare-styleable name="CarrierText">
         <attr name="allCaps" format="boolean" />
     </declare-styleable>
+
+    <attr name="pinDividerColor" format="color" />
+    <attr name="pinDeleteColor" format="color" />
 </resources>
diff --git a/packages/SystemUI/res-keyguard/values/colors.xml b/packages/SystemUI/res-keyguard/values/colors.xml
deleted file mode 100644
index 5071594a71d4e..0000000000000
--- a/packages/SystemUI/res-keyguard/values/colors.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2012 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>
-    <color name="keyguard_numpad_divider_light">#80FFFFFF</color> <!-- 50% white -->
-    <color name="keyguard_numpad_divider_dark">#FF9FA4A6</color>
-    <color name="keyguard_numpad_delete_light">#FFFFFFFF</color>
-    <color name="keyguard_numpad_delete_dark">@color/material_grey_600</color>
-</resources>
diff --git a/packages/SystemUI/res-keyguard/values/styles.xml b/packages/SystemUI/res-keyguard/values/styles.xml
index 53a559f92f1ae..d7ff349b52bfb 100644
--- a/packages/SystemUI/res-keyguard/values/styles.xml
+++ b/packages/SystemUI/res-keyguard/values/styles.xml
@@ -20,11 +20,11 @@
 <resources>
     <!-- Keyguard PIN pad styles -->
     <style name="Keyguard.TextView" parent="@android:style/Widget.DeviceDefault.TextView">
-        <item name="android:textColor">@*android:color/primary_device_default_light</item>
+        <item name="android:textColor">?attr/bgProtectSecondaryTextColor</item>
         <item name="android:textSize">@dimen/kg_status_line_font_size</item>
     </style>
     <style name="Keyguard.TextView.EmergencyButton" parent="@android:style/DeviceDefault.ButtonBar">
-        <item name="android:textColor">@*android:color/primary_device_default_light</item>
+        <item name="android:textColor">?attr/bgProtectSecondaryTextColor</item>
         <item name="android:textSize">@dimen/kg_status_line_font_size</item>
         <item name="android:background">@null</item>
     </style>
@@ -34,13 +34,16 @@
         <item name="android:background">@null</item>
         <item name="android:textSize">36sp</item>
         <item name="android:fontFamily">sans-serif-light</item>
-        <item name="android:textColor">#ffffffff</item>
+        <item name="android:textColor">?attr/bgProtectTextColor</item>
         <item name="android:paddingBottom">-16dp</item>
     </style>
+    <style name="Keyguard.ImageButton.NumPadEnter" parent="@android:style/Widget.ImageButton">
+        <item name="android:tint">?attr/bgProtectTextColor</item>
+    </style>
     <style name="Widget.TextView.NumPadKey.Klondike" parent="Widget.TextView.NumPadKey">
         <item name="android:textSize">12sp</item>
         <item name="android:fontFamily">sans-serif</item>
-        <item name="android:textColor">#80ffffff</item>
+        <item name="android:textColor">?attr/bgProtectSecondaryTextColor</item>
         <item name="android:paddingBottom">0dp</item>
     </style>
 
@@ -58,8 +61,9 @@
     </style>
 
     <style name="PasswordTheme" parent="@android:style/Theme.DeviceDefault">
-        <item name="android:colorControlNormal">#80ffffff</item>
-        <item name="android:colorControlActivated">#80ffffff</item>
+        <item name="android:textColor">?attr/bgProtectTextColor</item>
+        <item name="android:colorControlNormal">?attr/bgProtectTextColor</item>
+        <item name="android:colorControlActivated">?attr/bgProtectTextColor</item>
     </style>
 
     <style name="keyguard_presentation_theme" parent="@android:style/Theme.Material.NoActionBar.Fullscreen">
diff --git a/packages/SystemUI/res/color/background_protect_secondary.xml b/packages/SystemUI/res/color/background_protect_secondary.xml
new file mode 100644
index 0000000000000..26dc1515d2a58
--- /dev/null
+++ b/packages/SystemUI/res/color/background_protect_secondary.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
+  -->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="?attr/bgProtectSecondaryTextColor" />
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/color/background_protected.xml b/packages/SystemUI/res/color/background_protected.xml
new file mode 100644
index 0000000000000..ab8ed87131457
--- /dev/null
+++ b/packages/SystemUI/res/color/background_protected.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
+  -->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="?attr/bgProtectTextColor" />
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/color/pin_delete_color.xml b/packages/SystemUI/res/color/pin_delete_color.xml
new file mode 100644
index 0000000000000..bb8b8e3f05826
--- /dev/null
+++ b/packages/SystemUI/res/color/pin_delete_color.xml
@@ -0,0 +1,19 @@
+<?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
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:alpha="0.61" android:color="?attr/bgProtectTextColor" />
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/color/pin_divider_color.xml b/packages/SystemUI/res/color/pin_divider_color.xml
new file mode 100644
index 0000000000000..ca5f43164b674
--- /dev/null
+++ b/packages/SystemUI/res/color/pin_divider_color.xml
@@ -0,0 +1,19 @@
+<?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
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:alpha="0.45" android:color="?attr/bgProtectSecondaryTextColor" />
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/qs_background_primary.xml b/packages/SystemUI/res/drawable/qs_background_primary.xml
index 03bba53946da8..416583013e645 100644
--- a/packages/SystemUI/res/drawable/qs_background_primary.xml
+++ b/packages/SystemUI/res/drawable/qs_background_primary.xml
@@ -15,6 +15,6 @@
 -->
 <inset xmlns:android="http://schemas.android.com/apk/res/android">
     <shape>
-        <solid android:color="@color/qs_background_dark"/>
+        <solid android:color="?android:attr/colorBackgroundFloating"/>
     </shape>
 </inset>
diff --git a/packages/SystemUI/res/layout/keyguard_status_bar.xml b/packages/SystemUI/res/layout/keyguard_status_bar.xml
index c5f2f4ab6caa6..71a681c176832 100644
--- a/packages/SystemUI/res/layout/keyguard_status_bar.xml
+++ b/packages/SystemUI/res/layout/keyguard_status_bar.xml
@@ -63,7 +63,7 @@
         android:gravity="center_vertical"
         android:ellipsize="marquee"
         android:textAppearance="?android:attr/textAppearanceSmall"
-        android:textColor="#ffffff"
+        android:textColor="?attr/bgProtectSecondaryTextColor"
         android:singleLine="true" />
 
 </com.android.systemui.statusbar.phone.KeyguardStatusBarView>
diff --git a/packages/SystemUI/res/layout/qs_panel.xml b/packages/SystemUI/res/layout/qs_panel.xml
index fb4ac044486de..62a1756108f91 100644
--- a/packages/SystemUI/res/layout/qs_panel.xml
+++ b/packages/SystemUI/res/layout/qs_panel.xml
@@ -18,7 +18,6 @@
     android:id="@+id/quick_settings_container"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="?android:attr/colorPrimaryDark"
     android:clipToPadding="false"
     android:clipChildren="false">
 
@@ -27,6 +26,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@drawable/qs_background_primary"
+        android:alpha="0.8"
         android:elevation="4dp" />
 
     <com.android.systemui.qs.QSPanel
diff --git a/packages/SystemUI/res/layout/signal_cluster_view.xml b/packages/SystemUI/res/layout/signal_cluster_view.xml
index 2e22943620d49..25c87d3f981a7 100644
--- a/packages/SystemUI/res/layout/signal_cluster_view.xml
+++ b/packages/SystemUI/res/layout/signal_cluster_view.xml
@@ -32,6 +32,7 @@
         android:layout_width="wrap_content"
         android:paddingEnd="6dp"
         android:src="@drawable/stat_sys_vpn_ic"
+        android:tint="@color/background_protect_secondary"
         android:contentDescription="@string/accessibility_vpn_on"
         />
     <FrameLayout
diff --git a/packages/SystemUI/res/layout/status_bar_expanded.xml b/packages/SystemUI/res/layout/status_bar_expanded.xml
index 07a9a60a9ea7b..bef0830d5802f 100644
--- a/packages/SystemUI/res/layout/status_bar_expanded.xml
+++ b/packages/SystemUI/res/layout/status_bar_expanded.xml
@@ -27,7 +27,6 @@
 
     <include
         layout="@layout/keyguard_status_view"
-        android:layout_height="wrap_content"
         android:visibility="gone" />
 
     <com.android.systemui.statusbar.phone.NotificationsQuickSettingsContainer
diff --git a/packages/SystemUI/res/layout/status_bar_no_notifications.xml b/packages/SystemUI/res/layout/status_bar_no_notifications.xml
index 6f87184498d57..ed4bc67f450a6 100644
--- a/packages/SystemUI/res/layout/status_bar_no_notifications.xml
+++ b/packages/SystemUI/res/layout/status_bar_no_notifications.xml
@@ -27,7 +27,7 @@
             android:layout_height="64dp"
             android:paddingTop="28dp"
             android:gravity="top|center_horizontal"
-            android:textColor="#e6ffffff"
+            android:textColor="?attr/bgProtectTextColor"
             android:textSize="16sp"
             android:text="@string/empty_shade_text"/>
 </com.android.systemui.statusbar.EmptyShadeView>
diff --git a/packages/SystemUI/res/layout/status_bar_notification_dismiss_all.xml b/packages/SystemUI/res/layout/status_bar_notification_dismiss_all.xml
index efb273f8692de..eefa9bca0e427 100644
--- a/packages/SystemUI/res/layout/status_bar_notification_dismiss_all.xml
+++ b/packages/SystemUI/res/layout/status_bar_notification_dismiss_all.xml
@@ -30,5 +30,6 @@
             android:focusable="true"
             android:contentDescription="@string/accessibility_clear_all"
             android:text="@string/clear_all_notifications_text"
+            android:textColor="?attr/bgProtectTextColor"
             android:textAllCaps="true"/>
 </com.android.systemui.statusbar.DismissView>
diff --git a/packages/SystemUI/res/values/attrs.xml b/packages/SystemUI/res/values/attrs.xml
index ce57bf95a7cf9..81f0138be67c9 100644
--- a/packages/SystemUI/res/values/attrs.xml
+++ b/packages/SystemUI/res/values/attrs.xml
@@ -127,5 +127,7 @@
 
     <attr name="lightIconTheme" format="reference" />
     <attr name="darkIconTheme" format="reference" />
+    <attr name="bgProtectTextColor" format="color" />
+    <attr name="bgProtectSecondaryTextColor" format="color" />
 </resources>
 
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index b04625642c53a..5d8d389810bc7 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -293,7 +293,18 @@
     <style name="systemui_theme" parent="@*android:style/Theme.DeviceDefault.QuickSettings">
         <item name="lightIconTheme">@style/DualToneLightTheme</item>
         <item name="darkIconTheme">@style/DualToneDarkTheme</item>
+        <item name="bgProtectTextColor">?android:attr/textColorPrimaryInverse</item>
+        <item name="bgProtectSecondaryTextColor">?android:attr/textColorSecondaryInverse</item>
+        <item name="pinDividerColor">@color/pin_divider_color</item>
+        <item name="pinDeleteColor">@color/pin_delete_color</item>
+        <item name="*android:lockPatternStyle">@style/LockPatternStyle</item>
     </style>
+
+    <style name="LockPatternStyle">
+        <item name="*android:regularColor">?android:attr/textColorPrimaryInverse</item>
+        <item name="*android:successColor">?android:attr/textColorPrimaryInverse</item>
+    </style>
+
     <style name="qs_theme" parent="systemui_theme">
         <item name="lightIconTheme">@style/QSIconTheme</item>
         <item name="darkIconTheme">@style/QSIconTheme</item>
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
index 616e5b9830ed9..165ca2a2d3be1 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -75,8 +75,7 @@ public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSe
     }
 
     public KeyguardSecurityContainer(Context context, AttributeSet attrs, int defStyle) {
-        super(new ContextThemeWrapper(context, android.R.style.Theme_DeviceDefault), attrs,
-                defStyle);
+        super(context, attrs, defStyle);
         mSecurityModel = new KeyguardSecurityModel(context);
         mLockPatternUtils = new LockPatternUtils(context);
         mUpdateMonitor = KeyguardUpdateMonitor.getInstance(mContext);
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
index 988ab04f80b25..15b766db4800c 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
@@ -191,6 +191,10 @@ public class KeyguardStatusView extends GridLayout {
                 ((MarginLayoutParams) mClockView.getLayoutParams()).bottomMargin;
     }
 
+    public float getClockTextSize() {
+        return mClockView.getTextSize();
+    }
+
     public static String formatNextAlarm(Context context, AlarmManager.AlarmClockInfo info) {
         if (info == null) {
             return "";
diff --git a/packages/SystemUI/src/com/android/keyguard/PasswordTextView.java b/packages/SystemUI/src/com/android/keyguard/PasswordTextView.java
index c43820d5a8fc0..7e811731c87d6 100644
--- a/packages/SystemUI/src/com/android/keyguard/PasswordTextView.java
+++ b/packages/SystemUI/src/com/android/keyguard/PasswordTextView.java
@@ -23,6 +23,7 @@ import android.animation.ValueAnimator;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.Typeface;
@@ -127,12 +128,13 @@ public class PasswordTextView extends View {
             mCharPadding = a.getDimensionPixelSize(R.styleable.PasswordTextView_charPadding,
                     getContext().getResources().getDimensionPixelSize(
                             R.dimen.password_char_padding));
+            int textColor = a.getColor(R.styleable.PasswordTextView_android_textColor, Color.WHITE);
+            mDrawPaint.setColor(textColor);
         } finally {
             a.recycle();
         }
         mDrawPaint.setFlags(Paint.SUBPIXEL_TEXT_FLAG | Paint.ANTI_ALIAS_FLAG);
         mDrawPaint.setTextAlign(Paint.Align.CENTER);
-        mDrawPaint.setColor(0xffffffff);
         mDrawPaint.setTypeface(Typeface.create("sans-serif-light", 0));
         mShowPassword = Settings.System.getInt(mContext.getContentResolver(),
                 Settings.System.TEXT_SHOW_PASSWORD, 1) == 1;
diff --git a/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java b/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
index cf8747e19e85d..6476416a4e728 100644
--- a/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
+++ b/packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
@@ -71,6 +71,7 @@ public class BatteryMeterView extends LinearLayout implements
 
     private int mLightModeBackgroundColor;
     private int mLightModeFillColor;
+    private float mDarkIntensity;
 
     public BatteryMeterView(Context context) {
         this(context, null, 0);
@@ -238,6 +239,7 @@ public class BatteryMeterView extends LinearLayout implements
 
     @Override
     public void onDarkChanged(Rect area, float darkIntensity, int tint) {
+        mDarkIntensity = darkIntensity;
         float intensity = DarkIconDispatcher.isInArea(area, this) ? darkIntensity : 0;
         int foreground = getColorForDarkIntensity(intensity, mLightModeFillColor,
                 mDarkModeFillColor);
@@ -254,6 +256,14 @@ public class BatteryMeterView extends LinearLayout implements
         }
     }
 
+    public void setFillColor(int color) {
+        if (mLightModeFillColor == color) {
+            return;
+        }
+        mLightModeFillColor = color;
+        onDarkChanged(new Rect(), mDarkIntensity, DarkIconDispatcher.DEFAULT_ICON_TINT);
+    }
+
     private int getColorForDarkIntensity(float darkIntensity, int lightColor, int darkColor) {
         return (int) ArgbEvaluator.getInstance().evaluate(darkIntensity, lightColor, darkColor);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java b/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
index aa3262311f6ea..25ef478fc6302 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
@@ -65,16 +65,16 @@ public class KeyguardIndicationController {
     private static final long TRANSIENT_FP_ERROR_TIMEOUT = 1300;
 
     private final Context mContext;
-    private final ViewGroup mIndicationArea;
-    private final KeyguardIndicationTextView mTextView;
-    private final KeyguardIndicationTextView mDisclosure;
+    private ViewGroup mIndicationArea;
+    private KeyguardIndicationTextView mTextView;
+    private KeyguardIndicationTextView mDisclosure;
     private final UserManager mUserManager;
     private final IBatteryStats mBatteryInfo;
     private final SettableWakeLock mWakeLock;
 
     private final int mSlowThreshold;
     private final int mFastThreshold;
-    private final LockIcon mLockIcon;
+    private LockIcon mLockIcon;
     private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
 
     private String mRestingIndication;
@@ -115,7 +115,7 @@ public class KeyguardIndicationController {
         mIndicationArea = indicationArea;
         mTextView = (KeyguardIndicationTextView) indicationArea.findViewById(
                 R.id.keyguard_indication_text);
-        mInitialTextColor = mTextView.getCurrentTextColor();
+        mInitialTextColor = mTextView != null ? mTextView.getCurrentTextColor() : Color.WHITE;
         mDisclosure = (KeyguardIndicationTextView) indicationArea.findViewById(
                 R.id.keyguard_indication_enterprise_disclosure);
         mLockIcon = lockIcon;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.java
index 020dc253da667..e0f577da51007 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.java
@@ -15,36 +15,76 @@
 package com.android.systemui.statusbar.phone;
 
 import android.content.Context;
+import android.content.om.IOverlayManager;
 import android.content.res.Configuration;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.os.UserHandle;
 
 import com.android.systemui.ConfigurationChangedReceiver;
 import com.android.systemui.statusbar.policy.ConfigurationController;
 
 import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
 
 public class ConfigurationControllerImpl implements ConfigurationController,
         ConfigurationChangedReceiver {
 
     private final ArrayList<ConfigurationListener> mListeners = new ArrayList<>();
+    private final IOverlayManager mOverlayManager;
     private int mDensity;
     private float mFontScale;
+    private Map mActiveOverlays;
 
     public ConfigurationControllerImpl(Context context) {
         Configuration currentConfig = context.getResources().getConfiguration();
+        mOverlayManager = IOverlayManager.Stub.asInterface(
+                ServiceManager.getService(Context.OVERLAY_SERVICE));
         mFontScale = currentConfig.fontScale;
         mDensity = currentConfig.densityDpi;
+        try {
+            mActiveOverlays = mOverlayManager.getAllOverlays(UserHandle.getCallingUserId());
+        } catch (RemoteException e) {
+            mActiveOverlays = new HashMap();
+        }
     }
 
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
-        mListeners.forEach(l -> l.onConfigChanged(newConfig));
+        // Avoid concurrent modification exception
+        ArrayList<ConfigurationListener> listeners = new ArrayList<>(mListeners);
+
+        listeners.forEach(l -> {
+            if (mListeners.contains(l)) {
+                l.onConfigChanged(newConfig);
+            }
+        });
         final float fontScale = newConfig.fontScale;
         final int density = newConfig.densityDpi;
         if (density != mDensity || mFontScale != fontScale) {
-            mListeners.forEach(l -> l.onDensityOrFontScaleChanged());
+            listeners.forEach(l -> {
+                if (mListeners.contains(l)) {
+                    l.onDensityOrFontScaleChanged();
+                }
+            });
             mDensity = density;
             mFontScale = fontScale;
         }
+
+        try {
+            Map activeOverlays = mOverlayManager.getAllOverlays(UserHandle.getCallingUserId());
+            if (!mActiveOverlays.equals(activeOverlays)) {
+                mActiveOverlays = activeOverlays;
+                listeners.forEach(l -> {
+                    if (mListeners.contains(l)) {
+                        l.onOverlayChanged();
+                    }
+                });
+            }
+        } catch (RemoteException e) {
+            e.rethrowAsRuntimeException();
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarView.java
index 42b09dfe99c7b..6d6250e66e496 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarView.java
@@ -16,9 +16,12 @@
 
 package com.android.systemui.statusbar.phone;
 
+import android.annotation.ColorInt;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.util.TypedValue;
@@ -28,6 +31,7 @@ import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import com.android.settingslib.Utils;
 import com.android.systemui.BatteryMeterView;
 import com.android.systemui.Dependency;
 import com.android.systemui.Interpolators;
@@ -312,4 +316,10 @@ public class KeyguardStatusBarView extends RelativeLayout
     public boolean hasOverlappingRendering() {
         return false;
     }
+
+    public void onOverlayChanged() {
+        @ColorInt int textColor = Utils.getColorAttr(mContext, R.attr.bgProtectTextColor);
+        mCarrierLabel.setTextColor(textColor);
+        mBatteryView.setFillColor(textColor);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationIconAreaController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationIconAreaController.java
index 52838b052bd4e..b888e8c71f370 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationIconAreaController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationIconAreaController.java
@@ -235,4 +235,9 @@ public class NotificationIconAreaController implements DarkReceiver {
             v.setDecorColor(mIconTint);
         }
     }
+
+    public void setDark(boolean dark) {
+        mNotificationIcons.setDark(dark, false, 0);
+        mShelfIcons.setDark(dark, false, 0);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 4009db6e70397..e2b9da04fed22 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -34,6 +34,7 @@ import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
 import android.util.MathUtils;
+import android.view.LayoutInflater;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.View;
@@ -47,8 +48,10 @@ import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.keyguard.KeyguardStatusView;
 import com.android.systemui.DejankUtils;
+import com.android.systemui.Dependency;
 import com.android.systemui.Interpolators;
 import com.android.systemui.R;
+import com.android.systemui.SystemUIFactory;
 import com.android.systemui.classifier.FalsingManager;
 import com.android.systemui.fragments.FragmentHostManager;
 import com.android.systemui.fragments.FragmentHostManager.FragmentListener;
@@ -58,6 +61,7 @@ import com.android.systemui.statusbar.ExpandableView;
 import com.android.systemui.statusbar.FlingAnimationUtils;
 import com.android.systemui.statusbar.GestureRecorder;
 import com.android.systemui.statusbar.KeyguardAffordanceView;
+import com.android.systemui.statusbar.KeyguardIndicationController;
 import com.android.systemui.statusbar.NotificationData;
 import com.android.systemui.statusbar.NotificationShelf;
 import com.android.systemui.statusbar.StatusBarState;
@@ -65,6 +69,7 @@ import com.android.systemui.statusbar.notification.NotificationUtils;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcher;
 import com.android.systemui.statusbar.policy.OnHeadsUpChangedListener;
+import com.android.systemui.statusbar.policy.UserInfoController;
 import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
 import com.android.systemui.statusbar.stack.StackStateAnimator;
 
@@ -112,7 +117,6 @@ public class NotificationPanelView extends PanelView implements
     private QS mQs;
     private FrameLayout mQsFrame;
     private KeyguardStatusView mKeyguardStatusView;
-    private TextView mClockView;
     private View mReserveNotificationSpace;
     private View mQsNavbarScrim;
     protected NotificationsQuickSettingsContainer mNotificationContainerParent;
@@ -232,6 +236,8 @@ public class NotificationPanelView extends PanelView implements
     private LockscreenGestureLogger mLockscreenGestureLogger = new LockscreenGestureLogger();
     private boolean mNoVisibleNotifications = true;
     private ValueAnimator mDarkAnimator;
+    private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
+    private boolean mUserSetupComplete;
 
     public NotificationPanelView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -243,6 +249,7 @@ public class NotificationPanelView extends PanelView implements
 
     public void setStatusBar(StatusBar bar) {
         mStatusBar = bar;
+        mKeyguardBottomArea.setStatusBar(mStatusBar);
     }
 
     @Override
@@ -250,7 +257,6 @@ public class NotificationPanelView extends PanelView implements
         super.onFinishInflate();
         mKeyguardStatusBar = findViewById(R.id.keyguard_header);
         mKeyguardStatusView = findViewById(R.id.keyguard_status_view);
-        mClockView = findViewById(R.id.clock_view);
 
         mNotificationContainerParent = (NotificationsQuickSettingsContainer)
                 findViewById(R.id.notification_container_parent);
@@ -261,10 +267,10 @@ public class NotificationPanelView extends PanelView implements
         mNotificationStackScroller.setOnEmptySpaceClickListener(this);
         mKeyguardBottomArea = findViewById(R.id.keyguard_bottom_area);
         mQsNavbarScrim = findViewById(R.id.qs_navbar_scrim);
-        mAffordanceHelper = new KeyguardAffordanceHelper(this, getContext());
-        mKeyguardBottomArea.setAffordanceHelper(mAffordanceHelper);
         mLastOrientation = getResources().getConfiguration().orientation;
 
+        initBottomArea();
+
         mQsFrame = findViewById(R.id.qs_frame);
     }
 
@@ -324,6 +330,38 @@ public class NotificationPanelView extends PanelView implements
         }
     }
 
+    public void onOverlayChanged() {
+        // Re-inflate the status view group.
+        int index = indexOfChild(mKeyguardStatusView);
+        removeView(mKeyguardStatusView);
+        mKeyguardStatusView = (KeyguardStatusView) LayoutInflater.from(mContext).inflate(
+                R.layout.keyguard_status_view,
+                this,
+                false);
+        addView(mKeyguardStatusView, index);
+
+        // Update keyguard bottom area
+        index = indexOfChild(mKeyguardBottomArea);
+        removeView(mKeyguardBottomArea);
+        mKeyguardBottomArea = (KeyguardBottomAreaView) LayoutInflater.from(mContext).inflate(
+                R.layout.keyguard_bottom_area,
+                this,
+                false);
+        addView(mKeyguardBottomArea, index);
+        initBottomArea();
+    }
+
+    private void initBottomArea() {
+        mAffordanceHelper = new KeyguardAffordanceHelper(this, getContext());
+        mKeyguardBottomArea.setAffordanceHelper(mAffordanceHelper);
+        mKeyguardBottomArea.setStatusBar(mStatusBar);
+        mKeyguardBottomArea.setUserSetupComplete(mUserSetupComplete);
+    }
+
+    public void setKeyguardIndicationController(KeyguardIndicationController indicationController) {
+        mKeyguardBottomArea.setKeyguardIndicationController(indicationController);
+    }
+
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
@@ -331,7 +369,8 @@ public class NotificationPanelView extends PanelView implements
 
         // Update Clock Pivot
         mKeyguardStatusView.setPivotX(getWidth() / 2);
-        mKeyguardStatusView.setPivotY((FONT_HEIGHT - CAP_HEIGHT) / 2048f * mClockView.getTextSize());
+        mKeyguardStatusView.setPivotY((FONT_HEIGHT - CAP_HEIGHT) / 2048f *
+                mKeyguardStatusView.getClockTextSize());
 
         // Calculate quick setting heights.
         int oldMaxHeight = mQsMaxExpansionHeight;
@@ -2571,4 +2610,31 @@ public class NotificationPanelView extends PanelView implements
             mStatusBar.updateKeyguardMaxNotifications();
         }
     }
+
+    public void refreshTime() {
+        mKeyguardStatusView.refreshTime();
+    }
+
+    public void setStatusAccessibilityImportance(int mode) {
+         mKeyguardStatusView.setImportantForAccessibility(mode);
+    }
+
+    /**
+     * TODO: this should be removed.
+     * It's not correct to pass this view forward because other classes will end up adding
+     * children to it. Theme will be out of sync.
+     * @return bottom area view
+     */
+    public KeyguardBottomAreaView getKeyguardBottomAreaView() {
+        return mKeyguardBottomArea;
+    }
+
+    public void setUserSetupComplete(boolean userSetupComplete) {
+        mUserSetupComplete = userSetupComplete;
+        mKeyguardBottomArea.setUserSetupComplete(userSetupComplete);
+    }
+
+    public LockIcon getLockIcon() {
+        return mKeyguardBottomArea.getLockIcon();
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index 8ce86ff7cefff..3418e07b3be0f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -49,6 +49,7 @@ import android.app.PendingIntent;
 import android.app.RemoteInput;
 import android.app.StatusBarManager;
 import android.app.TaskStackBuilder;
+import android.app.WallpaperManager;
 import android.app.admin.DevicePolicyManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentCallbacks2;
@@ -57,6 +58,8 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.IntentSender;
+import android.content.om.IOverlayManager;
+import android.content.om.OverlayInfo;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.IPackageManager;
 import android.content.pm.PackageManager;
@@ -150,7 +153,6 @@ import com.android.internal.statusbar.StatusBarIcon;
 import com.android.internal.util.NotificationMessagingUtil;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.keyguard.KeyguardHostView.OnDismissAction;
-import com.android.keyguard.KeyguardStatusView;
 import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.keyguard.KeyguardUpdateMonitorCallback;
 import com.android.keyguard.ViewMediatorCallback;
@@ -243,6 +245,8 @@ import com.android.systemui.util.NotificationChannels;
 import com.android.systemui.util.leak.LeakDetector;
 import com.android.systemui.volume.VolumeComponent;
 
+import com.google.android.colorextraction.ColorExtractor;
+
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.io.StringWriter;
@@ -262,7 +266,8 @@ public class StatusBar extends SystemUI implements DemoMode,
         OnHeadsUpChangedListener, VisualStabilityManager.Callback, CommandQueue.Callbacks,
         ActivatableNotificationView.OnActivatedListener,
         ExpandableNotificationRow.ExpansionLogger, NotificationData.Environment,
-        ExpandableNotificationRow.OnExpandClickListener, InflationCallback {
+        ExpandableNotificationRow.OnExpandClickListener, InflationCallback,
+        ColorExtractor.OnColorsChangedListener {
     public static final boolean MULTIUSER_DEBUG = false;
 
     public static final boolean ENABLE_REMOTE_INPUT =
@@ -300,7 +305,7 @@ public class StatusBar extends SystemUI implements DemoMode,
     private static final String NOTIFICATION_UNLOCKED_BY_WORK_CHALLENGE_ACTION
             = "com.android.systemui.statusbar.work_challenge_unlocked_notification_action";
     public static final String TAG = "StatusBar";
-    public static final boolean DEBUG = false;
+    public static final boolean DEBUG = true;
     public static final boolean SPEW = false;
     public static final boolean DUMPTRUCK = true; // extra dumpsys info
     public static final boolean DEBUG_GESTURES = false;
@@ -426,6 +431,7 @@ public class StatusBar extends SystemUI implements DemoMode,
     Object mQueueLock = new Object();
 
     protected StatusBarIconController mIconController;
+    private IconManager mIconManager;
 
     // expanded notifications
     protected NotificationPanelView mNotificationPanel; // the sliding/resizing panel within the notification window
@@ -444,8 +450,6 @@ public class StatusBar extends SystemUI implements DemoMode,
 
     // top bar
     protected KeyguardStatusBarView mKeyguardStatusBar;
-    KeyguardStatusView mKeyguardStatusView;
-    KeyguardBottomAreaView mKeyguardBottomArea;
     boolean mLeaveOpenOnKeyguardHide;
     KeyguardIndicationController mKeyguardIndicationController;
 
@@ -512,8 +516,8 @@ public class StatusBar extends SystemUI implements DemoMode,
                 mUserSetup = userSetup;
                 if (!mUserSetup && mStatusBarView != null)
                     animateCollapseQuickSettings();
-                if (mKeyguardBottomArea != null) {
-                    mKeyguardBottomArea.setUserSetupComplete(mUserSetup);
+                if (mNotificationPanel != null) {
+                    mNotificationPanel.setUserSetupComplete(mUserSetup);
                 }
                 updateQsExpansionEnabled();
             }
@@ -722,6 +726,7 @@ public class StatusBar extends SystemUI implements DemoMode,
     private KeyguardMonitorImpl mKeyguardMonitor;
     private BatteryController mBatteryController;
     protected boolean mPanelExpanded;
+    private IOverlayManager mOverlayManager;
     private boolean mKeyguardRequested;
     private boolean mIsKeyguard;
     private LogMaker mStatusBarStateLog;
@@ -732,6 +737,7 @@ public class StatusBar extends SystemUI implements DemoMode,
     private HashMap<String, Entry> mPendingNotifications = new HashMap<>();
     private boolean mClearAllEnabled;
     @Nullable private View mAmbientIndicationContainer;
+    private ColorExtractor mColorExtractor;
 
     private void recycleAllVisibilityObjects(ArraySet<NotificationVisibility> array) {
         final int N = array.size();
@@ -774,6 +780,11 @@ public class StatusBar extends SystemUI implements DemoMode,
         mAssistManager = Dependency.get(AssistManager.class);
         mDeviceProvisionedController = Dependency.get(DeviceProvisionedController.class);
         mSystemServicesProxy = SystemServicesProxy.getInstance(mContext);
+        mOverlayManager = IOverlayManager.Stub.asInterface(
+                ServiceManager.getService(Context.OVERLAY_SERVICE));
+
+        mColorExtractor = Dependency.get(ColorExtractor.class);
+        mColorExtractor.addOnColorsChangedListener(this);
 
         mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
         mDisplay = mWindowManager.getDefaultDisplay();
@@ -970,8 +981,16 @@ public class StatusBar extends SystemUI implements DemoMode,
             public void onDensityOrFontScaleChanged() {
                 StatusBar.this.onDensityOrFontScaleChanged();
             }
+
+            @Override
+            public void onOverlayChanged() {
+                StatusBar.this.onOverlayChanged();
+            }
         };
         Dependency.get(ConfigurationController.class).addCallback(mConfigurationListener);
+
+        // Make sure that we're using the correct theme
+        onOverlayChanged();
     }
 
     protected void createIconController() {
@@ -1020,8 +1039,8 @@ public class StatusBar extends SystemUI implements DemoMode,
                 .replace(R.id.status_bar_container, new CollapsedStatusBarFragment(),
                         CollapsedStatusBarFragment.TAG)
                 .commit();
-        Dependency.get(StatusBarIconController.class).addIconGroup(
-                new IconManager((ViewGroup) mKeyguardStatusBar.findViewById(R.id.statusIcons)));
+        mIconManager = new IconManager(mKeyguardStatusBar.findViewById(R.id.statusIcons));
+        Dependency.get(StatusBarIconController.class).addIconGroup(mIconManager);
         mIconController = Dependency.get(StatusBarIconController.class);
 
         mHeadsUpManager = new HeadsUpManager(context, mStatusBarWindow, mGroupManager);
@@ -1073,15 +1092,12 @@ public class StatusBar extends SystemUI implements DemoMode,
             mLockscreenWallpaper = new LockscreenWallpaper(mContext, this, mHandler);
         }
 
-        mKeyguardStatusView =
-                (KeyguardStatusView) mStatusBarWindow.findViewById(R.id.keyguard_status_view);
-        mKeyguardBottomArea =
-                (KeyguardBottomAreaView) mStatusBarWindow.findViewById(R.id.keyguard_bottom_area);
         mKeyguardIndicationController =
                 SystemUIFactory.getInstance().createKeyguardIndicationController(mContext,
                 (ViewGroup) mStatusBarWindow.findViewById(R.id.keyguard_indication_area),
-                mKeyguardBottomArea.getLockIcon());
-        mKeyguardBottomArea.setKeyguardIndicationController(mKeyguardIndicationController);
+                mNotificationPanel.getLockIcon());
+        mNotificationPanel.setKeyguardIndicationController(mKeyguardIndicationController);
+
 
         mAmbientIndicationContainer = mStatusBarWindow.findViewById(
                 R.id.ambient_indication_container);
@@ -1134,8 +1150,7 @@ public class StatusBar extends SystemUI implements DemoMode,
         // Other icons
         mVolumeComponent = getComponent(VolumeComponent.class);
 
-        mKeyguardBottomArea.setStatusBar(this);
-        mKeyguardBottomArea.setUserSetupComplete(mUserSetup);
+        mNotificationPanel.setUserSetupComplete(mUserSetup);
         if (UserManager.get(mContext).isUserSwitcherEnabled()) {
             createUserSwitcher();
         }
@@ -1285,12 +1300,6 @@ public class StatusBar extends SystemUI implements DemoMode,
         if (mBrightnessMirrorController != null) {
             mBrightnessMirrorController.onDensityOrFontScaleChanged();
         }
-        inflateSignalClusters();
-        mNotificationIconAreaController.onDensityOrFontScaleChanged(mContext);
-        inflateDismissView();
-        updateClearAll();
-        inflateEmptyShadeView();
-        updateEmptyShadeView();
         mStatusBarKeyguardViewManager.onDensityOrFontScaleChanged();
         // TODO: Bring these out of StatusBar.
         ((UserInfoControllerImpl) Dependency.get(UserInfoController.class))
@@ -1299,6 +1308,44 @@ public class StatusBar extends SystemUI implements DemoMode,
         if (mKeyguardUserSwitcher != null) {
             mKeyguardUserSwitcher.onDensityOrFontScaleChanged();
         }
+        mNotificationIconAreaController.onDensityOrFontScaleChanged(mContext);
+
+        reevaluateStyles();
+    }
+
+    protected void onOverlayChanged() {
+        final boolean usingDarkTheme = isUsingDarkTheme();
+        if (DEBUG) {
+            Log.d(TAG, "Updating theme because overlay changed. Is theme dark? " + usingDarkTheme);
+        }
+        reevaluateStyles();
+
+        // Clock and bottom icons
+        mNotificationPanel.onOverlayChanged();
+
+        // Recreate Indication controller because internal references changed
+        // TODO: unregister callbacks before recreating
+        mKeyguardIndicationController =
+                SystemUIFactory.getInstance().createKeyguardIndicationController(mContext,
+                        mStatusBarWindow.findViewById(R.id.keyguard_indication_area),
+                        mNotificationPanel.getLockIcon());
+        mNotificationPanel.setKeyguardIndicationController(mKeyguardIndicationController);
+        mKeyguardIndicationController
+                .setStatusBarKeyguardViewManager(mStatusBarKeyguardViewManager);
+        mKeyguardIndicationController.setVisible(mState == StatusBarState.KEYGUARD);
+        mKeyguardIndicationController.setDozing(mDozing);
+
+        // Top status bar with system icons and clock
+        mKeyguardStatusBar.onOverlayChanged();
+        mIconManager.onOverlayChanged();
+    }
+
+    protected void reevaluateStyles() {
+        inflateSignalClusters();
+        inflateDismissView();
+        updateClearAll();
+        inflateEmptyShadeView();
+        updateEmptyShadeView();
     }
 
     private void updateNotificationsOnDensityOrFontScaleChanged() {
@@ -1347,20 +1394,20 @@ public class StatusBar extends SystemUI implements DemoMode,
     }
 
     private void inflateEmptyShadeView() {
+        if (mStackScroller == null) {
+            return;
+        }
         mEmptyShadeView = (EmptyShadeView) LayoutInflater.from(mContext).inflate(
                 R.layout.status_bar_no_notifications, mStackScroller, false);
         mStackScroller.setEmptyShadeView(mEmptyShadeView);
     }
 
     private void inflateDismissView() {
-        if (!mClearAllEnabled) {
+        if (!mClearAllEnabled || mStackScroller == null) {
             return;
         }
 
-        // Always inflate with a dark theme, since this sits on the scrim.
-        ContextThemeWrapper themedContext = new ContextThemeWrapper(mContext,
-                style.Theme_DeviceDefault);
-        mDismissView = (DismissView) LayoutInflater.from(themedContext).inflate(
+        mDismissView = (DismissView) LayoutInflater.from(mContext).inflate(
                 R.layout.status_bar_notification_dismiss_all, mStackScroller, false);
         mDismissView.setOnButtonClickListener(new View.OnClickListener() {
             @Override
@@ -1476,10 +1523,8 @@ public class StatusBar extends SystemUI implements DemoMode,
         mStatusBarKeyguardViewManager = keyguardViewMediator.registerStatusBar(this,
                 getBouncerContainer(), mScrimController,
                 mFingerprintUnlockController);
-        mKeyguardIndicationController.setStatusBarKeyguardViewManager(
-                mStatusBarKeyguardViewManager);
-        mKeyguardIndicationController.setUserInfoController(
-                Dependency.get(UserInfoController.class));
+        mKeyguardIndicationController
+                .setStatusBarKeyguardViewManager(mStatusBarKeyguardViewManager);
         mFingerprintUnlockController.setStatusBarKeyguardViewManager(mStatusBarKeyguardViewManager);
         mRemoteInputController.addCallback(mStatusBarKeyguardViewManager);
 
@@ -2589,7 +2634,7 @@ public class StatusBar extends SystemUI implements DemoMode,
 
     public void setQsExpanded(boolean expanded) {
         mStatusBarWindowManager.setQsExpanded(expanded);
-        mKeyguardStatusView.setImportantForAccessibility(expanded
+        mNotificationPanel.setStatusAccessibilityImportance(expanded
                 ? View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
                 : View.IMPORTANT_FOR_ACCESSIBILITY_AUTO);
     }
@@ -2783,8 +2828,20 @@ public class StatusBar extends SystemUI implements DemoMode,
         return mNotificationPanel.hideStatusBarIconsWhenExpanded();
     }
 
-    public KeyguardIndicationController getKeyguardIndicationController() {
-        return mKeyguardIndicationController;
+    @Override
+    public void onColorsChanged(ColorExtractor.GradientColors colors, int which) {
+        updateTheme();
+    }
+
+    public boolean isUsingDarkTheme() {
+        OverlayInfo themeInfo = null;
+        try {
+            themeInfo = mOverlayManager.getOverlayInfo("com.android.systemui.theme.dark",
+                    mCurrentUserId);
+        } catch (RemoteException e) {
+            e.printStackTrace();
+        }
+        return themeInfo != null && themeInfo.isEnabled();
     }
 
     @Nullable
@@ -4426,6 +4483,7 @@ public class StatusBar extends SystemUI implements DemoMode,
             mScrimController.setKeyguardShowing(false);
         }
         mNotificationPanel.setBarState(mState, mKeyguardFadingAway, goingToFullShade);
+        updateTheme();
         updateDozingState();
         updatePublicMode();
         updateStackScrollerState(goingToFullShade, fromShadeLocked);
@@ -4438,6 +4496,35 @@ public class StatusBar extends SystemUI implements DemoMode,
         Trace.endSection();
     }
 
+    /**
+     * Switches theme from light to dark and vice-versa.
+     */
+    private void updateTheme() {
+        boolean useDarkTheme;
+        if (mState == StatusBarState.KEYGUARD || mState == StatusBarState.SHADE_LOCKED) {
+            useDarkTheme = mColorExtractor.getColors(WallpaperManager.FLAG_LOCK)
+                    .supportsDarkText();
+        } else {
+            useDarkTheme = mColorExtractor.getColors(WallpaperManager.FLAG_SYSTEM)
+                    .supportsDarkText();
+        }
+
+        // Enable/Disable dark overlay
+        if (isUsingDarkTheme() != useDarkTheme) {
+            if (DEBUG) {
+                Log.d(TAG, "Switching theme to: " + (useDarkTheme ? "Dark" : "Light"));
+            }
+            try {
+                mOverlayManager.setEnabled("com.android.systemui.theme.dark",
+                        useDarkTheme, mCurrentUserId);
+            } catch (RemoteException e) {
+                Log.w(TAG, "Can't change theme", e);
+                return;
+            }
+            mStatusBarWindowManager.setKeyguardDark(useDarkTheme);
+        }
+    }
+
     private void updateDozingState() {
         Trace.beginSection("StatusBar#updateDozingState");
         boolean animate = !mDozing && mDozeServiceHost.shouldAnimateWakeup();
@@ -4585,6 +4672,7 @@ public class StatusBar extends SystemUI implements DemoMode,
         mStackScroller.setStatusBarState(state);
         updateReportRejectedTouchVisibility();
         updateDozing();
+        updateTheme();
         mNotificationShelf.setStatusBarState(state);
     }
 
@@ -4665,8 +4753,12 @@ public class StatusBar extends SystemUI implements DemoMode,
         return mNavigationBarView;
     }
 
+    /**
+     * TODO: Remove this method. Views should not be passed forward. Will cause theme issues.
+     * @return bottom area view
+     */
     public KeyguardBottomAreaView getKeyguardBottomAreaView() {
-        return mKeyguardBottomArea;
+        return mNotificationPanel.getKeyguardBottomAreaView();
     }
 
     // ---------------------- DragDownHelper.OnDragDownListener ------------------------------------
@@ -5177,7 +5269,7 @@ public class StatusBar extends SystemUI implements DemoMode,
 
         @Override
         public void dozeTimeTick() {
-            mKeyguardStatusView.refreshTime();
+            mNotificationPanel.refreshTime();
         }
 
         @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java
index a3ef91d95149a..64b21b4577159 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarIconController.java
@@ -14,7 +14,10 @@
 
 package com.android.systemui.statusbar.phone;
 
+import android.annotation.ColorInt;
 import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Color;
 import android.support.annotation.VisibleForTesting;
 import android.text.TextUtils;
 import android.util.ArraySet;
@@ -26,6 +29,7 @@ import android.widget.LinearLayout;
 import android.widget.LinearLayout.LayoutParams;
 
 import com.android.internal.statusbar.StatusBarIcon;
+import com.android.settingslib.Utils;
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.StatusBarIconView;
@@ -57,7 +61,6 @@ public interface StatusBarIconController {
         return ret;
     }
 
-
     /**
      * Version of ViewGroup that observers state from the DarkIconDispatcher.
      */
@@ -165,6 +168,17 @@ public interface StatusBarIconController {
             }
         }
 
+        protected void onOverlayChanged() {
+            @ColorInt int iconColor = Utils.getColorAttr(mContext, R.attr.bgProtectTextColor);
+            for (int i = 0; i < mGroup.getChildCount(); i++) {
+                View child = mGroup.getChildAt(i);
+                if (child instanceof StatusBarIconView) {
+                    StatusBarIconView icon = (StatusBarIconView) child;
+                    icon.setStaticDrawableColor(iconColor);
+                }
+            }
+        }
+
         private void setHeightAndCenter(ImageView imageView, int height) {
             ViewGroup.LayoutParams params = imageView.getLayoutParams();
             params.height = height;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
index 0326e4025a795..93dc6de1059ad 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowManager.java
@@ -111,6 +111,18 @@ public class StatusBarWindowManager implements RemoteInputController.Callback, D
         mLpChanged.copyFrom(mLp);
     }
 
+    public void setKeyguardDark(boolean dark) {
+        int vis = mStatusBarView.getSystemUiVisibility();
+        if (dark) {
+            vis = vis | View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
+            vis = vis | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+        } else {
+            vis = vis & ~View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR;
+            vis = vis & ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
+        }
+        mStatusBarView.setSystemUiVisibility(vis);
+    }
+
     private void applyKeyguardFlags(State state) {
         if (state.keyguardShowing) {
             mLpChanged.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
index 788fda80d4dad..418c48ec36f20 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
@@ -27,5 +27,6 @@ public interface ConfigurationController extends CallbackController<Configuratio
     interface ConfigurationListener {
         default void onConfigChanged(Configuration newConfig) {}
         default void onDensityOrFontScaleChanged() {}
+        default void onOverlayChanged() {}
     }
 }
diff --git a/packages/SysuiDarkThemeOverlay/Android.mk b/packages/SysuiDarkThemeOverlay/Android.mk
new file mode 100644
index 0000000000000..4b83058ab4810
--- /dev/null
+++ b/packages/SysuiDarkThemeOverlay/Android.mk
@@ -0,0 +1,13 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_RRO_THEME := SysuiDarkTheme
+LOCAL_CERTIFICATE := platform
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+LOCAL_PACKAGE_NAME := SysuiDarkThemeOverlay
+
+include $(BUILD_RRO_PACKAGE)
diff --git a/packages/SysuiDarkThemeOverlay/AndroidManifest.xml b/packages/SysuiDarkThemeOverlay/AndroidManifest.xml
new file mode 100644
index 0000000000000..ba1c91cbdebe6
--- /dev/null
+++ b/packages/SysuiDarkThemeOverlay/AndroidManifest.xml
@@ -0,0 +1,8 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.systemui.theme.dark"
+    android:versionCode="1"
+    android:versionName="1.0">
+    <overlay android:targetPackage="android" android:priority="1"/>
+
+    <application android:label="@string/sysui_overlay_dark" android:hasCode="false"/>
+</manifest>
diff --git a/packages/SysuiDarkThemeOverlay/res/values/strings.xml b/packages/SysuiDarkThemeOverlay/res/values/strings.xml
new file mode 100644
index 0000000000000..71f48d6279f19
--- /dev/null
+++ b/packages/SysuiDarkThemeOverlay/res/values/strings.xml
@@ -0,0 +1,24 @@
+<?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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <string name="sysui_overlay_dark">Dark</string>
+
+</resources>
+
diff --git a/packages/SysuiDarkThemeOverlay/res/values/themes_device_defaults.xml b/packages/SysuiDarkThemeOverlay/res/values/themes_device_defaults.xml
new file mode 100644
index 0000000000000..28ecfa0b37fa8
--- /dev/null
+++ b/packages/SysuiDarkThemeOverlay/res/values/themes_device_defaults.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Dark theme for a window that should look like the Settings app.  -->
+    <style name="Theme.DeviceDefault.QuickSettings" parent="android:Theme.DeviceDefault">
+        <!-- Color palette -->
+        <item name="android:colorPrimary">@*android:color/primary_device_default_settings</item>
+        <item name="android:colorPrimaryDark">@*android:color/primary_dark_device_default_settings</item>
+        <item name="android:textColorPrimaryInverse">@*android:color/primary_text_material_light</item>
+        <item name="android:textColorSecondaryInverse">@*android:color/secondary_text_material_light</item>
+        <item name="android:colorSecondary">@*android:color/secondary_device_default_settings</item>
+        <item name="android:colorAccent">@*android:color/accent_device_default_dark</item>
+        <item name="android:colorControlNormal">?android:attr/textColorPrimary</item>
+        <item name="android:colorBackgroundFloating">#000</item>
+    </style>
+</resources>
\ No newline at end of file