 data: [null],
                    backgroundColor: [ pattern.draw('diagonal', 'rgba(238, 224, 152, 0.75)') ]
                },
                {
                    label: ['Aborted Tests'],
                    data: [null],
                    backgroundColor: [ pattern.draw('diagonal-right-left', 'rgba(255, 153, 102, 0.5)') ]
                },
                {
                    label: ['Failed Tests'],
                    data: [1],
                    backgroundColor: [ pattern.draw('zigzag-vertica