series: [ { name: '๊ฑด์', type: 'line', tooltip: { valueFormatter: function (value) { return value; } }, yAxisIndex: 1, data: cnts, lineStyle: { color: 'blue' // Set the desired color for the line } } ] lineStyle: { color: 'blue' // Set the desired color for the line } color ๊ฐ์ ์ปฌ๋ฌ์ฝ๋๊ฐ์ ๋ฃ์ด๋ ๋๋ค.