public ThemeEditor(ThemeEditorViewModel viewModel)
 {
     this.DataContext = viewModel;
     this.InitializeComponent();
 }
 private void EditThemeHandler(object parameters)
 {
     var themeEditorViewModel = new ThemeEditorViewModel(this.paintZone.Theme);
     themeEditorViewModel.EditFinished += this.EditFinishedHandler;
     var themeEditor = new ThemeEditor.ThemeEditor(themeEditorViewModel);
     themeEditor.Show();
 }