Standardize financial chart colors and improve label placement

js/charts/ppmt_liquidity_working_capital.js

@@ -1,7 +1,7 @@
 import { col } from '../csv.js';
 import {
-  PALETTE, FONT, axisCommon, periodAxis, titleStyle, legendStyle,
-  lineSeries, footnote, watermarks, LAYOUT,
+  PALETTE, FINANCIAL_COLORS, FONT, axisCommon, periodAxis, titleStyle, legendStyle,
+  lineDataWithSafeLabels, lineSeries, barSeries, footnote, watermarks, LAYOUT,
 } from '../theme.js';
 
 /** 泡泡玛特现金、负债与净营运资本：观察流动性与资金占用。 */
@@ -39,26 +39,35 @@ export function liquidityWorkingCapitalChart(rows, { width, height }) {
     },
     series: [
       {
-        name: '货币资金',
-        type: 'bar',
-        data: col(rows, 'cash'),
-        barWidth: 18,
-        itemStyle: { color: PALETTE.blue },
+        ...barSeries({
+          name: '货币资金',
+          data: col(rows, 'cash'),
+          color: FINANCIAL_COLORS.investingCashFlow,
+          barWidth: 18,
+          formatter: (p) => p.value.toFixed(1),
+        }),
         emphasis: { focus: 'series' },
       },
       {
-        name: '负债合计',
-        type: 'bar',
-        data: col(rows, 'total_liabilities'),
-        barWidth: 18,
-        itemStyle: { color: PALETTE.orange },
+        ...barSeries({
+          name: '负债合计',
+          data: col(rows, 'total_liabilities'),
+          color: FINANCIAL_COLORS.financingCashFlow,
+          barWidth: 18,
+          formatter: (p) => p.value.toFixed(1),
+        }),
         emphasis: { focus: 'series' },
       },
       {
         ...lineSeries({
           name: '净营运资本',
-          data: col(rows, 'net_working_capital'),
-          color: PALETTE.red,
+          data: lineDataWithSafeLabels(rows, {
+            lineKey: 'net_working_capital',
+            barKeys: ['cash', 'total_liabilities'],
+            // 净营运资本接近货币资金时，标签置于柱体另一侧。
+            closePosition: 'bottom',
+          }),
+          color: FINANCIAL_COLORS.operatingCashFlow,
           formatter: (p) => p.value.toFixed(1),
           width: 3,
         }),