docs: public static ImageGridPanel showGrid( int numColumns , String title , BufferedImage ...images ) {
  		JFrame frame = new JFrame(title);
  
  		int numRows = images.length/numColumns + images.length%numColumns;
  		ImageGridPanel panel = new ImageGridPanel(numRows,numColumns,images);
  
  		frame.add(panel, BorderLayout.CENTER);
  
  		frame.pack();
  		frame.setVisible(true);
  
  		return panel;
  	}