Use the Holo Light theme.

android/AndroidManifest.xml

@@ -10,6 +10,7 @@
 
     <application
         android:icon="@drawable/icon"
+        android:theme="@style/AppTheme"
         android:label="@string/app_name" >
         <service
             android:name=".TtsService"

android/res/values/styles.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="AppTheme" parent="android:Theme.Holo.Light">
+    </style>
+</resources>