WPF UI NavigationViewItem make the color change when selected

Good Morning Everyone,I have installed the WPF UI Extension from lepo.co library, I have create the Project with the Fluent Navigation MVVM template.Now I would like to change the colors when the NavigationViewItem is selected.

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I found the following resources that should resolve the issue:

<SolidColorBrush x:Key="NavigationViewItemForegroundPressed" Color="Lime"/> <SolidColorBrush x:Key="NavigationViewSelectionIndicatorForeground" Color="Red"/>

But NavigationViewItemForegroundPressed don't work, Can you give me some indications on how to obtain the result?

Thanks

I found the following resources that should resolve the issue:

<SolidColorBrush x:Key="NavigationViewItemForegroundPressed" Color="Lime"/> <SolidColorBrush x:Key="NavigationViewSelectionIndicatorForeground" Color="Red"/>

I expected it to change color