The FontResourceBase type exposes the following members.
Returns content of this font as byte stream
Returns correct filename of this font resource, which consists of name and extension. Theoretically can differ from the name.
Determines whether this font is disposed or not
Returns name of this font resource. Usually doesn't contain filename extension and theoretically can differ from filename.
Returns content of this font as base64-encoded string. This value is cached after first invoke.
In implementing type should return information about type of specific font resource as an instance of specific FontType type, which encapsulates all type-specific info