private JPanel createMainPanel() {
		JPanel mainPanel = new JPanel();
		mainPanel.setLayout(new BorderLayout(10, 0));
		mainPanel.add(createSearchPanel(), BorderLayout.NORTH);
		mainPanel.add(createDetailsPanel(), BorderLayout.CENTER);
		return mainPanel;
	}
Called when user selects Cancel Button
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/searchtext/SearchTextDialog.java