r: function() {
                            return 'Footer';
                        },
                        afterFooter: function() {
                            return '...afterFooter';
                        },
                    }
                },
                hover: {
                    mode: 'label'
                },
                scales: {
                    xAxes: [{
                        display: true,
                        scaleLabel: {
                            show: true,
  