Style for WPF scroll bar, that have some states:
- Hidden - when Mouse is outside of ScrollViewer
- Visible (Minimized) - when mouse over ScrollViewer but outside ScrollBar
- Visible (Normal) - when mouse over ScrollBar
Add ResourceDictionary to App.xaml.
<Application.Resources>
<ResourceDictionary Source="pack://application:,,,/ScrollBar.Style;component/Dictionary.xaml"/>
</Application.Resources>