private void Clr_Checked(object sender, System.Windows.RoutedEventArgs e)
        {
            RadioButton btn = sender as RadioButton;

            if (null == btn)
            {
                return;
            }
            ThemeManagerUsr.ChangeThemeColorScheme(System.Windows.Application.Current, btn.Content.ToString());
        }
 private void LightTheme_Checked(object sender, System.Windows.RoutedEventArgs e)
 {
     ThemeManagerUsr.ChangeThemeBaseColor(System.Windows.Application.Current, ThemeManager.BaseColorLight);
 }
 private void DarkTheme_Click(object sender, System.Windows.RoutedEventArgs e)
 {
     ThemeManagerUsr.ChangeThemeBaseColor(System.Windows.Application.Current, ThemeManager.BaseColorDark);
 }