private static void SetTitle(PhotinoWindow window, IWorkspace workspace)
{
var drawingName = workspace.Drawing.Settings.FileName is null
? "(Untitled)"
: Path.GetFileName(workspace.Drawing.Settings.FileName);
var dirtyMarker = workspace.IsDirty ? " *" : "";
var title = $"{WindowTitle} [{drawingName}]{dirtyMarker}";
window.SetTitle(title);
}