/// <summary>
/// Update the selected item property for each theme/accent when the theme/accent is changed
/// </summary>
private void ThemeManager_IsThemeChanged(object sender, OnThemeChangedEventArgs e)
{
OnPropertyChanged("CurrentAppTheme");
OnPropertyChanged("CurrentAppAccent");
AppThemes.ForEach(t => t.IsSelectedItem = (t == CurrentAppTheme));
AccentColors.ForEach(a => a.IsSelectedItem = (a == CurrentAppAccent));
}
