android/testData/themeEditor/attributeResolution/styles-v20.xml

<resources>

  <style name="AppTheme" parent="Base.V20">
    <item name="myAttribute">V20</item>
  </style>

  <style name="V20OnlyTheme" parent="@android:style/Theme">
    <item name="myAttribute">V20</item>
  </style>

  <style name="AppThemeParent" parent="@style/AppTheme">
    <item name="myAttribute">parent</item>
  </style>
</resources>