From 295ce3e96b32baa316e42e5ccc27f24c6a493312 Mon Sep 17 00:00:00 2001
From: Matt Bierner <12821956+mjbvz@users.noreply.github.com>
Date: Fri, 23 Jan 2026 16:29:43 -0800
Subject: [PATCH] Use light mermaid theme in high contrast light

For #271370
---
 extensions/mermaid-chat-features/chat-webview-src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/mermaid-chat-features/chat-webview-src/index.ts b/extensions/mermaid-chat-features/chat-webview-src/index.ts
index 9b3c9df71b6..35a67139ffd 100644
--- a/extensions/mermaid-chat-features/chat-webview-src/index.ts
+++ b/extensions/mermaid-chat-features/chat-webview-src/index.ts
@@ -5,7 +5,7 @@
 import mermaid, { MermaidConfig } from 'mermaid';
 
 function getMermaidTheme() {
-	return document.body.classList.contains('vscode-dark') || document.body.classList.contains('vscode-high-contrast')
+	return document.body.classList.contains('vscode-dark') || (document.body.classList.contains('vscode-high-contrast') && !document.body.classList.contains('vscode-high-contrast-light'))
 		? 'dark'
 		: 'default';
 }