I'm new to Android Studio (trying it out to compare with Eclipse) so following a tutorial. I added an android:theme to my manifest file

```
<activity
            android:name="be.wotcha.myfirstapp.MainActivity"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.AppCompat.Light" >

```

Now I'm trying to get rid of the android:theme so I edit the file and delete it, but every time I run Build/Clean Project Studio puts the android:theme back into the Manifest file and generates an error. Is there a simple way to stop Studio overwriting my edit? I'm using Studio 1.0.2 latest build