public String getString(String propertyName, String defaultValue) {
		Pair<PropertyEntryType, String> pair = map.get(propertyName);
		if (pair == null || pair.first != PropertyEntryType.STRING_TYPE) {
			return defaultValue;
		}
		String value = pair.second;
		return value;
	}
Return the string value with the given propertyName.
@param propertyName name of property that is a string
@param defaultValue value to use if the property does not exist
@return string value
Ghidra/Framework/FileSystem/src/main/java/ghidra/util/PropertyFile.java