diff --git a/core/res/res/drawable/popup_background_material.xml b/core/res/res/drawable/popup_background_material.xml
index b1f0cf595771d..9ad7bfc68122b 100644
--- a/core/res/res/drawable/popup_background_material.xml
+++ b/core/res/res/drawable/popup_background_material.xml
@@ -20,6 +20,6 @@
     <corners
             android:radius="2dp" />
     <solid
-            android:color="?attr/colorBackground" />
+            android:color="?attr/colorPopupBackground" />
 
 </shape>
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 489a08ac93999..dffc2e979c174 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -87,6 +87,8 @@
              theme does not set this value, meaning it is based on whether the
              window is floating. -->
         <attr name="backgroundDimEnabled" format="boolean" />
+        <!-- Color of background imagery used for popup windows. -->
+        <attr name="colorPopupBackground" format="color" />
 
         <!-- =========== -->
         <!-- Text styles -->
diff --git a/core/res/res/values/themes_device_defaults.xml b/core/res/res/values/themes_device_defaults.xml
index 2e984601524de..08d6d0621cf41 100644
--- a/core/res/res/values/themes_device_defaults.xml
+++ b/core/res/res/values/themes_device_defaults.xml
@@ -216,6 +216,7 @@ easier.
         <item name="colorAccent">@color/accent_device_default_dark</item>
         <item name="colorError">@color/error_color_device_default_dark</item>
         <item name="colorBackgroundFloating">@color/background_floating_device_default_dark</item>
+        <item name="colorPopupBackground">?attr/colorBackgroundFloating</item>
     </style>
 
     <style name="Theme.DeviceDefault" parent="Theme.DeviceDefaultBase" />
@@ -943,6 +944,7 @@ easier.
         <item name="colorAccent">@color/accent_device_default_light</item>
         <item name="colorError">@color/error_color_device_default_light</item>
         <item name="colorBackgroundFloating">@color/background_floating_device_default_light</item>
+        <item name="colorPopupBackground">?attr/colorBackgroundFloating</item>
     </style>
 
     <!-- Variant of the DeviceDefault (light) theme that has a solid (opaque) action bar with an
diff --git a/core/res/res/values/themes_material.xml b/core/res/res/values/themes_material.xml
index 6b7698e344ad1..6337db1905c93 100644
--- a/core/res/res/values/themes_material.xml
+++ b/core/res/res/values/themes_material.xml
@@ -52,6 +52,7 @@ please see themes_device_defaults.xml.
         <item name="secondaryContentAlpha">@dimen/secondary_content_alpha_material_dark</item>
         <item name="backgroundDimAmount">0.6</item>
         <item name="colorError">@color/error_color_material_dark</item>
+        <item name="colorPopupBackground">?attr/colorBackground</item>
 
         <!-- Text styles -->
         <item name="textAppearance">@style/TextAppearance.Material</item>
@@ -422,6 +423,7 @@ please see themes_device_defaults.xml.
         <item name="secondaryContentAlpha">@dimen/secondary_content_alpha_material_light</item>
         <item name="backgroundDimAmount">0.6</item>
         <item name="colorError">@color/error_color_material_light</item>
+        <item name="colorPopupBackground">?attr/colorBackground</item>
 
         <!-- Text styles -->
         <item name="textAppearance">@style/TextAppearance.Material</item>