BIRT reports use five different types of font configuration files. The font configuration file-naming convention includes information about the rendering format, the system platform, and the system locale, as shown in the following general format:
The platform name is defined by the Java System property, os.name. The current Java Network Launch Protocol (JNLP) specification does not list the values for the os attributes. Instead it states that all values are valid as long as they match the values returned by the system property os.name. Values that only match the beginning of os.name are also valid. If you specify Windows and the os.name is Windows 98, for example, the operating system name is accepted as valid.