public void OnButtonPress()
 {
     if (_settingsWindow == null)
     {
         _settingsWindow = new SettingsWindow(Settings);
         _settingsWindow.PluginWindow = _mainWindow;
         _settingsWindow.Closed += (sender, args) =>
         {
             _settingsWindow = null;
         };
         _settingsWindow.Show();
     }
     else
     {
         _settingsWindow.Activate();
     }
 }