private void ComboBoxTheme_SelectionChanged(object sender, SelectionChangedEventArgs e)
 {
     // Apply selected theme
     ThemeHelper.ApplySkin((Skin)comboBoxTheme.SelectedItem);
 }
 /// <summary>
 /// Cancels the changes already applied.
 /// </summary>
 public void CancelChanges()
 {
     LanguageHelper.ApplyLanguage(App.UserSettings.Language);
     ThemeHelper.ApplySkin(App.UserSettings.Theme);
 }