public void showScaledIconOverlay() {
		for (QUADRANT quad : QUADRANT.values()) {
			ImageIcon icon = new MultiIconBuilder(makeEmptyIcon(32, 32, Palette.GRAY))
					.addIcon(makeQuandrantIcon(32, 32, Palette.RED, Palette.BLACK), 14, 14, quad)
					.build();
			JOptionPane.showMessageDialog(null, "" + quad + " aligned",
				"Scaled icon_icon overlay test",
				JOptionPane.OK_OPTION, icon);
		}
	}
Minimal tests for MultiIconBuilder.  Doesn't test the produced images, just that it didn't cause an exception.
<p>
The showXYZ() methods are present so a human can run them as a test and see the output
Ghidra/Framework/Gui/src/test/java/resources/icons/MultiIconBuilderTest.java