diff --git a/core/res/res/values/themes_micro.xml b/core/res/res/values/themes_micro.xml
index 9647947238102..ebdab5be9d781 100644
--- a/core/res/res/values/themes_micro.xml
+++ b/core/res/res/values/themes_micro.xml
@@ -22,6 +22,8 @@
 
         <item name="numberPickerStyle">@style/Widget.Micro.NumberPicker</item>
         <item name="windowAnimationStyle">@style/Animation.SwipeDismiss</item>
+        <item name="windowBackground">@color/black</item>
+        <item name="windowContentOverlay">@null</item>
         <item name="windowIsFloating">false</item>
         <item name="windowIsTranslucent">true</item>
         <item name="windowSwipeToDismiss">true</item>
@@ -34,6 +36,8 @@
         <item name="textViewStyle">@style/Widget.Micro.TextView</item>
         <item name="numberPickerStyle">@style/Widget.Micro.NumberPicker</item>
         <item name="windowAnimationStyle">@style/Animation.SwipeDismiss</item>
+        <item name="windowBackground">@color/white</item>
+        <item name="windowContentOverlay">@null</item>
         <item name="windowIsFloating">false</item>
         <item name="windowIsTranslucent">true</item>
         <item name="windowSwipeToDismiss">true</item>