# 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