From 8caa35c2cf1ae84d0d8dac0c5cbaceab9faa7bbb Mon Sep 17 00:00:00 2001
From: jesperct <jmilecelento@gmail.com>
Date: Thu, 28 May 2026 03:59:51 -0300
Subject: [PATCH] fix(chart-echarts): drop white textBorder from Funnel segment
 labels (#40468)

(cherry picked from commit c73106b7a285f54dc9fc80826881c42bbf26c17d)
---
 .../plugin-chart-echarts/src/Funnel/transformProps.ts    | 2 --
 .../test/Funnel/transformProps.test.ts                   | 9 +++++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/superset-frontend/plugins/plugin-chart-echarts/src/Funnel/transformProps.ts b/superset-frontend/plugins/plugin-chart-echarts/src/Funnel/transformProps.ts
index fd3cce40c08..6739bc61053 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/src/Funnel/transformProps.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/src/Funnel/transformProps.ts
@@ -238,8 +238,6 @@ export default function transformProps(
     formatter,
     show: showLabels,
     color: theme.colorText,
-    textBorderColor: theme.colorBgBase,
-    textBorderWidth: 1,
   };
 
   const series: FunnelSeriesOption[] = [
diff --git a/superset-frontend/plugins/plugin-chart-echarts/test/Funnel/transformProps.test.ts b/superset-frontend/plugins/plugin-chart-echarts/test/Funnel/transformProps.test.ts
index 9e6a5a10b77..94ef64ce211 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/test/Funnel/transformProps.test.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/test/Funnel/transformProps.test.ts
@@ -75,6 +75,15 @@ describe('Funnel transformProps', () => {
       }),
     );
   });
+
+  test('does not apply a text border to segment labels', () => {
+    // A white textBorder washes out the dark text on light-colored segments.
+    const result = transformProps(chartProps as EchartsFunnelChartProps);
+    const { label } = (result.echartOptions.series as any)[0];
+    expect(label.color).toBe(supersetTheme.colorText);
+    expect(label.textBorderColor).toBeUndefined();
+    expect(label.textBorderWidth).toBeUndefined();
+  });
 });
 
 describe('formatFunnelLabel', () => {