VCardImporter, VCardExporter
diff --git a/res/values/styles.xml b/res/values/styles.xml
index c202eda..998da21 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -35,4 +35,13 @@
         <item name="android:windowContentOverlay">@null</item>
     </style>
 
+    <style name="BackgroundOnly">
+        <item name="android:windowBackground">@null</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowAnimationStyle">@null</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowNoDisplay">true</item>
+        <item name="android:windowIsFloating">true</item>
+    </style>
+
 </resources>