Method ThemeButtonClick

loader/MainWindow.xaml.cs:36–46

(object sender, RoutedEventArgs e)

        }

        private void ThemeButtonClick(object sender, RoutedEventArgs e)
        {
            var tm = ThemeManager.Current;
            var isLight = tm.ApplicationTheme == null
                ? tm.ActualApplicationTheme == ApplicationTheme.Light
                : tm.ApplicationTheme == ApplicationTheme.Light;

            tm.ApplicationTheme = isLight
                ? ApplicationTheme.Dark
                : ApplicationTheme.Light;
        }

        protected override void OnSourceInitialized(EventArgs e)
        {