protected JComponent createEditorPanel(DataTypeSelectionEditor dtEditor) {
		JPanel mainPanel = new JPanel(new BorderLayout());
		mainPanel.add(editor.getEditorComponent(), BorderLayout.NORTH);
		return mainPanel;
	}
A dialog that allows the user to choose from available data types or create new ones.
Ghidra/Features/Base/src/main/java/ghidra/app/util/datatype/DataTypeSelectionDialog.java