How to customize the style of Winrt SfTreeNavigator?

By default, SfTreeNavigator is Blue color for the SelectedItem and a gray to denote Mouse hover. But the SfTreeNavigator style can be edited to customize the SelectedItem and Mouse hover Background. In the following code example of SfTreeNavigator Style, the highlighted code changes customize the style.

In this code example, style is edited and define new keys such as 'SelectedBackground', 'SelectedHeaderForeground', 'Hovercolor', 'HeaderBackground' for modifying its color. And using Selected Visualstate, you can modify selected foreground.

MainWindow.Xaml

Figure 1: Customized Mouse hover Background

Figure 2: Customized Background for SelectedItem