private FormatManager createMinimalFormatManager() {
		FormatManager userDefinedFormat = plugin.getUserDefinedFormat();
		if (userDefinedFormat != null) {
			return userDefinedFormat;
		}
		return createDefaultFormat();
	}
Field format manager for restoring to the default 'minimal' view
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/mvc/FGController.java