public void can_configure_builder()
        {
            _settings.Build(_ =>
            {
                _.AddJsonFile("appsettings.json");
                _.AddJsonFile("colors.json");
            });

            _settings.Configure <Colors>();
            var colors   = _settings.Get <Colors>();
            var settings = _settings.Get <MySettings>();

            colors.Red.ShouldBe("#ff0000");
            settings.SomeSetting.ShouldBe(1);
        }