@Override
				protected void actionPerformed(ProjectDataContext context) {
					DomainFile domainFile = context.getSelectedFiles().get(0);
					showAbout(domainFile, domainFile.getMetadata());
				}
Display a pop-up dialog containing information about the Domain Object
that is currently open in the tool.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/help/AboutProgramPlugin.java