private void NewDockPane(PaintualUI.Controls.DrawingBoard db, string title)
{
DockPane pane = new DockPane();
pane.MinHeight = 100;
pane.MinWidth = 100;
pane.Header = title;
Grid g = new Grid();
g.Background = Brushes.White;
g.Children.Add(db);
pane.Content = g;
WindowsManager.AddDocument(pane);
}
