diff --git a/packages/SystemUI/res/color/prv_text_color_on_accent.xml b/packages/SystemUI/res/color/prv_text_color_on_accent.xml
deleted file mode 100644
index 9f44acadb420c..0000000000000
--- a/packages/SystemUI/res/color/prv_text_color_on_accent.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2021 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:androidprv="http://schemas.android.com/apk/prv/res/android"
-          xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:color="?androidprv:attr/textColorOnAccent" />
-</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/qs_dialog_btn_filled.xml b/packages/SystemUI/res/drawable/qs_dialog_btn_filled.xml
index 1a128dfe8b109..14cb1de9fa2dc 100644
--- a/packages/SystemUI/res/drawable/qs_dialog_btn_filled.xml
+++ b/packages/SystemUI/res/drawable/qs_dialog_btn_filled.xml
@@ -16,8 +16,8 @@
   -->
 <inset xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
-       android:insetTop="@dimen/qs_dialog_button_vertical_inset"
-       android:insetBottom="@dimen/qs_dialog_button_vertical_inset">
+       android:insetTop="@dimen/dialog_button_vertical_inset"
+       android:insetBottom="@dimen/dialog_button_vertical_inset">
     <ripple android:color="?android:attr/colorControlHighlight">
         <item android:id="@android:id/mask">
             <shape android:shape="rectangle">
@@ -29,10 +29,10 @@
             <shape android:shape="rectangle">
                 <corners android:radius="?android:attr/buttonCornerRadius"/>
                 <solid android:color="?androidprv:attr/colorAccentPrimary"/>
-                <padding android:left="@dimen/qs_dialog_button_horizontal_padding"
-                         android:top="@dimen/qs_dialog_button_vertical_padding"
-                         android:right="@dimen/qs_dialog_button_horizontal_padding"
-                         android:bottom="@dimen/qs_dialog_button_vertical_padding"/>
+                <padding android:left="@dimen/dialog_button_horizontal_padding"
+                         android:top="@dimen/dialog_button_vertical_padding"
+                         android:right="@dimen/dialog_button_horizontal_padding"
+                         android:bottom="@dimen/dialog_button_vertical_padding"/>
             </shape>
         </item>
     </ripple>
diff --git a/packages/SystemUI/res/drawable/qs_dialog_btn_outline.xml b/packages/SystemUI/res/drawable/qs_dialog_btn_outline.xml
index 467c20f3ffcd0..665b4564ebf15 100644
--- a/packages/SystemUI/res/drawable/qs_dialog_btn_outline.xml
+++ b/packages/SystemUI/res/drawable/qs_dialog_btn_outline.xml
@@ -16,8 +16,8 @@
   -->
 <inset xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
-       android:insetTop="@dimen/qs_dialog_button_vertical_inset"
-       android:insetBottom="@dimen/qs_dialog_button_vertical_inset">
+       android:insetTop="@dimen/dialog_button_vertical_inset"
+       android:insetBottom="@dimen/dialog_button_vertical_inset">
     <ripple android:color="?android:attr/colorControlHighlight">
         <item android:id="@android:id/mask">
             <shape android:shape="rectangle">
@@ -32,10 +32,10 @@
                 <stroke android:color="?androidprv:attr/colorAccentPrimary"
                         android:width="1dp"
                 />
-                <padding android:left="@dimen/qs_dialog_button_horizontal_padding"
-                         android:top="@dimen/qs_dialog_button_vertical_padding"
-                         android:right="@dimen/qs_dialog_button_horizontal_padding"
-                         android:bottom="@dimen/qs_dialog_button_vertical_padding"/>
+                <padding android:left="@dimen/dialog_button_horizontal_padding"
+                         android:top="@dimen/dialog_button_vertical_padding"
+                         android:right="@dimen/dialog_button_horizontal_padding"
+                         android:bottom="@dimen/dialog_button_vertical_padding"/>
             </shape>
         </item>
     </ripple>
diff --git a/packages/SystemUI/res/layout/alert_dialog_button_bar_systemui.xml b/packages/SystemUI/res/layout/alert_dialog_button_bar_systemui.xml
new file mode 100644
index 0000000000000..a3e289a42d052
--- /dev/null
+++ b/packages/SystemUI/res/layout/alert_dialog_button_bar_systemui.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@*android:id/buttonPanel"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:scrollbarAlwaysDrawVerticalTrack="true"
+    android:scrollIndicators="top|bottom"
+    android:fillViewport="true"
+    android:paddingTop="@dimen/dialog_button_bar_top_padding"
+    android:paddingStart="@dimen/dialog_side_padding"
+    android:paddingEnd="@dimen/dialog_side_padding"
+    android:paddingBottom="@dimen/dialog_bottom_padding"
+    style="?android:attr/buttonBarStyle">
+    <com.android.internal.widget.ButtonBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layoutDirection="locale"
+        android:orientation="horizontal"
+        android:gravity="bottom">
+
+        <Button
+            android:id="@android:id/button3"
+            style="?android:attr/buttonBarNeutralButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+        <Space
+            android:id="@*android:id/spacer"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:visibility="invisible" />
+
+        <Button
+            android:id="@android:id/button2"
+            style="?android:attr/buttonBarNegativeButtonStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+        <Button
+            android:id="@android:id/button1"
+            style="?android:attr/buttonBarPositiveButtonStyle"
+            android:layout_marginStart="8dp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+    </com.android.internal.widget.ButtonBarLayout>
+</ScrollView>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/alert_dialog_systemui.xml b/packages/SystemUI/res/layout/alert_dialog_systemui.xml
new file mode 100644
index 0000000000000..f280cbd16a0f8
--- /dev/null
+++ b/packages/SystemUI/res/layout/alert_dialog_systemui.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<com.android.internal.widget.AlertDialogLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@*android:id/parentPanel"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:gravity="center_horizontal|top"
+    android:orientation="vertical"
+    android:paddingTop="@dimen/dialog_top_padding"
+    >
+
+    <include layout="@layout/alert_dialog_title_systemui" />
+
+    <FrameLayout
+        android:id="@*android:id/contentPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="48dp"
+        android:paddingStart="@dimen/dialog_side_padding"
+        android:paddingEnd="@dimen/dialog_side_padding"
+        >
+
+        <ScrollView
+            android:id="@*android:id/scrollView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:clipToPadding="false">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+
+                <Space
+                    android:id="@*android:id/textSpacerNoTitle"
+                    android:visibility="gone"
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp" />
+
+                <TextView
+                    android:id="@*android:id/message"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    style="@style/TextAppearance.Dialog.Body.Message" />
+
+                <Space
+                    android:id="@*android:id/textSpacerNoButtons"
+                    android:visibility="gone"
+                    android:layout_width="match_parent"
+                    android:layout_height="6dp" />
+            </LinearLayout>
+        </ScrollView>
+    </FrameLayout>
+
+    <FrameLayout
+        android:id="@*android:id/customPanel"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:minHeight="48dp"
+        android:paddingStart="@dimen/dialog_side_padding"
+        android:paddingEnd="@dimen/dialog_side_padding"
+        >
+
+        <FrameLayout
+            android:id="@*android:id/custom"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+    </FrameLayout>
+
+    <include
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        layout="@layout/alert_dialog_button_bar_systemui" />
+
+</com.android.internal.widget.AlertDialogLayout>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/alert_dialog_title_systemui.xml b/packages/SystemUI/res/layout/alert_dialog_title_systemui.xml
new file mode 100644
index 0000000000000..480ba001fae1f
--- /dev/null
+++ b/packages/SystemUI/res/layout/alert_dialog_title_systemui.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:androidprv="http://schemas.android.com/apk/prv/res/android"
+    android:id="@*android:id/topPanel"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingStart="@dimen/dialog_side_padding"
+    android:paddingEnd="@dimen/dialog_side_padding"
+>
+
+    <!-- If the client uses a customTitle, it will be added here. -->
+
+    <LinearLayout
+        android:id="@*android:id/title_template"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:gravity="center_horizontal|top">
+
+        <ImageView
+            android:id="@*android:id/icon"
+            android:layout_width="32dp"
+            android:layout_height="32dp"
+            android:layout_marginBottom="16dp"
+            android:scaleType="fitCenter"
+            android:src="@null"
+            android:tint="?androidprv:attr/colorAccentPrimaryVariant"
+            />
+
+        <com.android.internal.widget.DialogTitle
+            android:id="@*android:id/alertTitle"
+            android:singleLine="true"
+            android:ellipsize="end"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="16dp"
+            style="@style/TextAppearance.Dialog.Title" />
+    </LinearLayout>
+
+    <Space
+        android:id="@*android:id/titleDividerNoCustom"
+        android:visibility="gone"
+        android:layout_width="match_parent"
+        android:layout_height="0dp" />
+</LinearLayout>
diff --git a/packages/SystemUI/res/layout/qs_user_dialog_content.xml b/packages/SystemUI/res/layout/qs_user_dialog_content.xml
index 9495ee6f31396..2a63895b71b8e 100644
--- a/packages/SystemUI/res/layout/qs_user_dialog_content.xml
+++ b/packages/SystemUI/res/layout/qs_user_dialog_content.xml
@@ -31,7 +31,7 @@
         android:layout_width="0dp"
         android:textAlignment="center"
         android:text="@string/qs_user_switch_dialog_title"
-        android:textAppearance="@style/TextAppearance.QSDialog.Title"
+        android:textAppearance="@style/TextAppearance.Dialog.Title"
         android:layout_marginBottom="32dp"
         sysui:layout_constraintTop_toTopOf="parent"
         sysui:layout_constraintStart_toStartOf="parent"
@@ -71,7 +71,7 @@
         sysui:layout_constraintStart_toStartOf="parent"
         sysui:layout_constraintEnd_toStartOf="@id/done"
         sysui:layout_constraintHorizontal_chainStyle="spread_inside"
-        style="@style/Widget.QSDialog.Button.BorderButton"
+        style="@style/Widget.Dialog.Button.BorderButton"
         />
 
     <Button
@@ -83,7 +83,7 @@
         sysui:layout_constraintBottom_toBottomOf="parent"
         sysui:layout_constraintStart_toEndOf="@id/settings"
         sysui:layout_constraintEnd_toEndOf="parent"
-        style="@style/Widget.QSDialog.Button"
+        style="@style/Widget.Dialog.Button"
         />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/packages/SystemUI/res/values-night/styles.xml b/packages/SystemUI/res/values-night/styles.xml
index 07e28b6d7f20e..a8cb56ea4eb6b 100644
--- a/packages/SystemUI/res/values-night/styles.xml
+++ b/packages/SystemUI/res/values-night/styles.xml
@@ -16,9 +16,7 @@
 
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <style name="Theme.SystemUI.Dialog" parent="@android:style/Theme.DeviceDefault.Dialog">
-        <item name="android:buttonCornerRadius">28dp</item>
-    </style>
+    <style name="Theme.SystemUI.DayNightDialog" parent="@android:style/Theme.DeviceDefault.Dialog"/>
 
     <style name="Theme.SystemUI.Dialog.Alert" parent="@*android:style/Theme.DeviceDefault.Dialog.Alert" />
 
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index 2afbe8c648be4..a2fd669c69fd6 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -1275,10 +1275,19 @@
 
     <dimen name="drag_and_drop_icon_size">70dp</dimen>
 
-    <dimen name="qs_dialog_button_horizontal_padding">16dp</dimen>
-    <dimen name="qs_dialog_button_vertical_padding">8dp</dimen>
+    <!-- Dimensions for unified SystemUI dialogs styling. Used by Theme.SystemUI.Dialog and
+         alert_dialog_systemui.xml
+      -->
+    <dimen name="dialog_button_horizontal_padding">16dp</dimen>
+    <dimen name="dialog_button_vertical_padding">8dp</dimen>
     <!-- The button will be 48dp tall, but the background needs to be 36dp tall -->
-    <dimen name="qs_dialog_button_vertical_inset">6dp</dimen>
+    <dimen name="dialog_button_vertical_inset">6dp</dimen>
+    <dimen name="dialog_top_padding">24dp</dimen>
+    <dimen name="dialog_bottom_padding">18dp</dimen>
+    <dimen name="dialog_side_padding">24dp</dimen>
+    <dimen name="dialog_button_bar_top_padding">32dp</dimen>
+
+    <!-- ************************************************************************* -->
 
     <dimen name="keyguard_unfold_translation_x">16dp</dimen>
 </resources>
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index 94d10decd2698..9d9861b8e6456 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -14,8 +14,8 @@
      limitations under the License.
 -->
 
-<resources xmlns:android="http://schemas.android.com/apk/res/android">
-    <!-- NOTE: Adding the androidprv: namespace to this file will break the studio build. -->
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+           xmlns:androidprv="http://schemas.android.com/apk/prv/res/android">
 
     <!-- HybridNotification themes and styles -->
 
@@ -351,11 +351,19 @@
         <item name="android:windowIsFloating">true</item>
     </style>
 
-    <style name="Theme.SystemUI.Dialog" parent="@android:style/Theme.DeviceDefault.Light.Dialog">
+    <style name="Theme.SystemUI.DayNightDialog" parent="@android:style/Theme.DeviceDefault.Light.Dialog"/>
+
+    <style name="Theme.SystemUI.Dialog" parent="@style/Theme.SystemUI.DayNightDialog">
         <item name="android:buttonCornerRadius">28dp</item>
-        <item name="android:buttonBarPositiveButtonStyle">@style/Widget.QSDialog.Button</item>
-        <item name="android:buttonBarNegativeButtonStyle">@style/Widget.QSDialog.Button.BorderButton</item>
-        <item name="android:buttonBarNeutralButtonStyle">@style/Widget.QSDialog.Button.BorderButton</item>
+        <item name="android:buttonBarPositiveButtonStyle">@style/Widget.Dialog.Button</item>
+        <item name="android:buttonBarNegativeButtonStyle">@style/Widget.Dialog.Button.BorderButton</item>
+        <item name="android:buttonBarNeutralButtonStyle">@style/Widget.Dialog.Button.BorderButton</item>
+        <item name="android:colorBackground">?androidprv:attr/colorSurface</item>
+        <item name="android:alertDialogStyle">@style/AlertDialogStyle</item>
+    </style>
+
+    <style name="AlertDialogStyle" parent="@androidprv:style/AlertDialog.DeviceDefault">
+        <item name="android:layout">@layout/alert_dialog_systemui</item>
     </style>
 
     <style name="Theme.SystemUI.Dialog.Alert" parent="@*android:style/Theme.DeviceDefault.Light.Dialog.Alert" />
@@ -853,24 +861,37 @@
         <item name="actionDividerHeight">32dp</item>
     </style>
 
-    <style name="TextAppearance.QSDialog.Title" parent="Theme.SystemUI.Dialog">
+    <style name="TextAppearance.Dialog.Title" parent="@android:style/TextAppearance.DeviceDefault.Large">
         <item name="android:textColor">?android:attr/textColorPrimary</item>
         <item name="android:textSize">24sp</item>
         <item name="android:fontFamily">@*android:string/config_headlineFontFamily</item>
         <item name="android:lineHeight">32sp</item>
+        <item name="android:gravity">center</item>
+        <item name="android:textAlignment">center</item>
     </style>
 
-    <style name="Widget.QSDialog.Button" parent = "Theme.SystemUI.Dialog">
+    <style name="TextAppearance.Dialog.Body" parent="@android:style/TextAppearance.DeviceDefault.Medium">
+        <item name="android:textColor">?android:attr/textColorSecondary</item>
+        <item name="android:textSize">14sp</item>
+        <item name="android:fontFamily">@*android:string/config_headlineFontFamily</item>
+        <item name="android:lineHeight">20sp</item>
+    </style>
+
+    <style name="TextAppearance.Dialog.Body.Message">
+        <item name="android:gravity">center</item>
+        <item name="android:textAlignment">center</item>
+    </style>
+
+    <style name="Widget.Dialog.Button" parent = "Theme.SystemUI.Dialog">
         <item name="android:background">@drawable/qs_dialog_btn_filled</item>
-        <item name="android:textColor">@color/prv_text_color_on_accent</item>
+        <item name="android:textColor">?androidprv:attr/textColorOnAccent</item>
         <item name="android:textSize">14sp</item>
         <item name="android:lineHeight">20sp</item>
-        <item name="android:fontFamily">@*android:string/config_bodyFontFamily</item>
+        <item name="android:fontFamily">@*android:string/config_bodyFontFamilyMedium</item>
         <item name="android:stateListAnimator">@null</item>
-        <item name="android:layout_marginHorizontal">4dp</item>
     </style>
 
-    <style name="Widget.QSDialog.Button.BorderButton">
+    <style name="Widget.Dialog.Button.BorderButton">
         <item name="android:background">@drawable/qs_dialog_btn_outline</item>
         <item name="android:textColor">?android:attr/textColorPrimary</item>
     </style>