function OnBuild2DImage()
{
  var ctx = FWiz.Get2DImageCtx();
  var pen = FWiz.GetPenStyle(0);
  pen.SetStyle("Marker pen blue");
  ctx.SetPenStyle(pen);
  var brush = FWiz.GetBrushStyle(0);
  brush.SetStyle("Yellow");
  ctx.SetBrushStyle(brush);  
  var rect = new DlxRect(-50,-30,50,30);
  ctx.DrawRectangle(rect, 0, 50, 0, 0, 50);
}