message: Tweak app.xaml
diff: <ResourceDictionary>
  <ResourceDictionary.MergedDictionaries>
  <theming:ThemeResourceDictionary Source="ui/Resources/Themes/ColorScheme/Light.xaml" Type="ColorScheme"/>
  + <ResourceDictionary Source="ui/Resources/DesignUpdate/Notifications.xaml" />
  <ResourceDictionary Source="ui/Resources/SharedStyles.xaml" />
  <ResourceDictionary Source="ui/Resources/ScrollBarStyles.xaml" />
  <ResourceDictionary Source="ui/Resources/EditViewControllerStyles.xaml"/>
  <ResourceDictionary Source="ui/Resources/PreferencesWindowStyles.xaml"/>
  <ResourceDictionary Source="ui/Resources/TutorialStyles.xaml" />
  - <ResourceDictionary Source="ui/Resources/DesignUpdate/Notifications.xaml" />
  </ResourceDictionary.MergedDictionaries>
  </ResourceDictionary>
  </Application.Resources>
  