diff --git a/core/res/res/values-television/themes.xml b/core/res/res/values-television/themes.xml
index 176e89ebc6917..b023c75ce367e 100644
--- a/core/res/res/values-television/themes.xml
+++ b/core/res/res/values-television/themes.xml
@@ -14,14 +14,14 @@
      limitations under the License.
 -->
 <resources>
-    <style name="Theme.Dialog.Alert" parent="Theme.Leanback.Light.Dialog.Alert" />
+    <style name="Theme.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
     <style name="Theme.Dialog.Confirmation" parent="Theme.Leanback.Dialog.Confirmation" />
     <style name="Theme.Holo.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
-    <style name="Theme.Holo.Light.Dialog.Alert" parent="Theme.Leanback.Light.Dialog.Alert" />
+    <style name="Theme.Holo.Light.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
     <style name="Theme.Material.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
-    <style name="Theme.Material.Light.Dialog.Alert" parent="Theme.Leanback.Light.Dialog.Alert" />
+    <style name="Theme.Material.Light.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
     <style name="Theme.Material.Settings.Dialog.Alert" parent="Theme.Leanback.Settings.Dialog.Alert" />
     <style name="Theme.Material.Dialog" parent="Theme.Leanback.Dialog" />
-    <style name="Theme.Material.Light.Dialog" parent="Theme.Leanback.Light.Dialog" />
+    <style name="Theme.Material.Light.Dialog" parent="Theme.Leanback.Dialog" />
     <style name="Theme.Material.Settings.Dialog" parent="Theme.Leanback.Settings.Dialog" />
 </resources>
diff --git a/core/res/res/values-television/themes_device_defaults.xml b/core/res/res/values-television/themes_device_defaults.xml
index d6bdeee00a9fd..9d0e52213f8b8 100644
--- a/core/res/res/values-television/themes_device_defaults.xml
+++ b/core/res/res/values-television/themes_device_defaults.xml
@@ -16,7 +16,7 @@
 <resources>
     <style name="Theme.DeviceDefault.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
     <style name="Theme.DeviceDefault.Dialog.AppError" parent="Theme.Leanback.Dialog.AppError" />
-    <style name="Theme.DeviceDefault.Light.Dialog.Alert" parent="Theme.Leanback.Light.Dialog.Alert" />
+    <style name="Theme.DeviceDefault.Light.Dialog.Alert" parent="Theme.Leanback.Dialog.Alert" />
 
     <!-- TODO(b/116457731): remove colorBackground from colors_material.xml if not used anymore -->
     <style name="Theme.DeviceDefault.Autofill" parent="Theme.Material">
diff --git a/core/res/res/values/colors_leanback.xml b/core/res/res/values/colors_leanback.xml
index df0be03d6f8ed..1b0fad866bd74 100644
--- a/core/res/res/values/colors_leanback.xml
+++ b/core/res/res/values/colors_leanback.xml
@@ -16,15 +16,11 @@
 
 <!-- Colors specific to Leanback themes. -->
 <resources>
-    <color name="background_leanback_dark">#ff324248</color>
-    <color name="background_leanback_light">#ffeeeeee</color>
+    <color name="background_leanback_dark">#FF1F232B</color>
 
     <color name="primary_text_leanback_dark">#cceeeeee</color>
     <color name="secondary_text_leanback_dark">#99eeeeee</color>
 
-    <color name="primary_text_leanback_light">#cc222222</color>
-    <color name="secondary_text_leanback_light">#99222222</color>
-
     <color name="primary_text_leanback_formwizard_default_dark">#ffeeeeee</color>
 
     <color name="btn_leanback_focused">#E8EAED</color>
diff --git a/core/res/res/values/dimens_leanback.xml b/core/res/res/values/dimens_leanback.xml
index 3ab21963ed777..ecda735193697 100644
--- a/core/res/res/values/dimens_leanback.xml
+++ b/core/res/res/values/dimens_leanback.xml
@@ -89,4 +89,6 @@
     <dimen name="leanback_button_radius">55dp</dimen>
     <dimen name="leanback_button_padding_horizontal">22dp</dimen>
     <dimen name="leanback_button_padding_vertical">11dp</dimen>
+
+    <dimen name="leanback_dialog_corner_radius">8dp</dimen>
 </resources>
diff --git a/core/res/res/values/themes_leanback.xml b/core/res/res/values/themes_leanback.xml
index efe5826129824..0be9e98006f42 100644
--- a/core/res/res/values/themes_leanback.xml
+++ b/core/res/res/values/themes_leanback.xml
@@ -15,31 +15,21 @@
 -->
 <resources>
     <style name="Theme.Leanback.Dialog" parent="Theme.Material.BaseDialog">
-      <item name="colorBackground">@color/background_leanback_dark</item>
-      <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
-      <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
-      <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
-      <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
-      <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
-      <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
-      <item name="buttonBarButtonStyle">@style/Widget.Leanback.Button.ButtonBarGravityStart</item>
-      <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
-    </style>
-
-    <style name="Theme.Leanback.Light.Dialog" parent="Theme.Material.Light.BaseDialog">
-      <item name="colorBackground">@color/background_leanback_dark</item>
-      <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
-      <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
-      <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
-      <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
-      <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
-      <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
+        <item name="colorBackground">@color/background_leanback_dark</item>
+        <item name="dialogCornerRadius">@dimen/leanback_dialog_corner_radius</item>
+        <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
+        <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
+        <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
+        <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
+        <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
+        <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
         <item name="buttonBarButtonStyle">@style/Widget.Leanback.Button.ButtonBarGravityStart</item>
-      <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
+        <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
     </style>
 
     <style name="Theme.Leanback.Settings.Dialog" parent="Theme.Material.Settings.BaseDialog">
         <item name="colorBackground">@color/background_leanback_dark</item>
+        <item name="dialogCornerRadius">@dimen/leanback_dialog_corner_radius</item>
         <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
         <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
         <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
@@ -51,34 +41,25 @@
     </style>
 
     <style name="Theme.Leanback.Dialog.Alert" parent="Theme.Material.Dialog.BaseAlert">
-      <item name="colorBackground">@color/background_leanback_dark</item>
-      <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
-      <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
-      <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
-      <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
-      <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
-      <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
-      <item name="buttonBarButtonStyle">@style/Widget.Leanback.Button.ButtonBarGravityStart</item>
-      <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
-    </style>
-
-    <style name="Theme.Leanback.Light.Dialog.Alert" parent="Theme.Material.Light.Dialog.BaseAlert">
-      <item name="colorBackground">@color/background_leanback_light</item>
-      <item name="textColorPrimary">@color/primary_text_leanback_light</item>
-      <item name="textColorSecondary">@color/secondary_text_leanback_light</item>
-      <item name="alertDialogStyle">@style/AlertDialog.Leanback.Light</item>
-      <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
-      <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
-      <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
+        <item name="colorBackground">@color/background_leanback_dark</item>
+        <item name="dialogCornerRadius">@dimen/leanback_dialog_corner_radius</item>
+        <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
+        <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
+        <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
+        <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
+        <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
+        <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
         <item name="buttonBarButtonStyle">@style/Widget.Leanback.Button.ButtonBarGravityStart</item>
-      <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
+        <item name="buttonBarStyle">@style/Widget.Leanback.ButtonBar</item>
     </style>
 
-    <style name="Theme.Leanback.Settings.Dialog.Alert" parent="Theme.Material.Settings.Dialog.BaseAlert">
-        <item name="colorBackground">@color/background_leanback_light</item>
-        <item name="textColorPrimary">@color/primary_text_leanback_light</item>
-        <item name="textColorSecondary">@color/secondary_text_leanback_light</item>
-        <item name="alertDialogStyle">@style/AlertDialog.Leanback.Light</item>
+    <style name="Theme.Leanback.Settings.Dialog.Alert"
+           parent="Theme.Material.Settings.Dialog.BaseAlert">
+        <item name="colorBackground">@color/background_leanback_dark</item>
+        <item name="dialogCornerRadius">@dimen/leanback_dialog_corner_radius</item>
+        <item name="textColorPrimary">@color/primary_text_leanback_dark</item>
+        <item name="textColorSecondary">@color/secondary_text_leanback_dark</item>
+        <item name="alertDialogStyle">@style/AlertDialog.Leanback</item>
         <item name="timePickerStyle">@style/Widget.Leanback.TimePicker</item>
         <item name="datePickerStyle">@style/Widget.Leanback.DatePicker</item>
         <item name="numberPickerStyle">@style/Widget.Leanback.NumberPicker</item>
@@ -144,9 +125,9 @@
         <!-- Icon sizes -->
         <item name="iconfactoryIconSize">@dimen/resolver_icon_size</item>
         <item name="iconfactoryBadgeSize">@dimen/resolver_badge_size</item>
-      </style>
+    </style>
 
     <!-- @hide Special theme for the default system Activity-based Alert dialogs. -->
-    <style name="Theme.Leanback.Dialog.Confirmation" parent="Theme.DeviceDefault.Dialog.Alert" />
+    <style name="Theme.Leanback.Dialog.Confirmation" parent="Theme.DeviceDefault.Dialog.Alert"/>
 
 </resources>