    # File lib/facets/more/settings.rb, line 146
        def add_setting(owner, name, options)
          owner = owner.to_s.to_sym
          @@owners[owner] ||= {}
          if s = @@owners[owner][name]
            # The setting already exists, update it.
            s.update(options)
          else
            # The setting does not exist, create it.
            @@owners[owner][name] = Setting.new(owner, name, options)
          end
        end