style: dark theme for scroller

src/components/echarts/config.ts

@@ -68,7 +68,6 @@ export default function useChartConfig() {
   const legend = {
     itemWidth: 8,
     itemHeight: 8,
-    padding: 0,
     textStyle: {
       color: chartColorMap.axislabelColor
     }

src/components/echarts/line-chart.tsx

@@ -51,7 +51,12 @@ const LineChart: React.FC<ChartProps> = (props) => {
     yAxis,
     legend: {
       ...legend,
-      data: legendData
+      data: legendData.map((item: any) => {
+        return {
+          name: item,
+          icon: 'circle'
+        };
+      })
     },
 
     series: []