I have a very simple EditText, as follows:
Use native parent theme for appropriate API level in your own customized style! "@android:style/theme.name".
Distinguish themes by Configuration qualifier:
value/style.xml - > parent="@android:style/Theme.Light"
value-v11/style.xml -> parent="@android:style/Theme.Holo.Light"
value-v14/style.xml -> parent="@android:style/Theme.DeviceDefault.Light"
http://code.google.com/p/android/issues/detail?id=22920