public void Open()
{
SettingsView settings = GetSettingsWindow();
settings.AddSetting <IDatabaseSettingsFactory, DatabaseSettings>();
settings.AddSetting <IThemeSettingsFactory, ThemeSettings>();
var settingsViewModelFactory = new SettingsViewModelFactory();
settingsViewModelFactory.ReportMediators(settings.Mediators);
settingsViewModelFactory.SetOnClose(settings.Close);
settings.SetViewModel(settingsViewModelFactory);
settings.Show();
}