Docs: fix Shiki dark mode rendering (#42591)

diff --git a/site/astro.config.ts b/site/astro.config.ts
index 8b79913a775a158e89c00e43456c81318eeff1eb..96997aacf40b446018c8f6f55ea26fd647bf259f 100644 (file)
--- a/site/astro.config.ts
+++ b/site/astro.config.ts
@@ -78,6 +78,7 @@ export default defineConfig({
         light: { ...bootstrapLight, name: '', type: 'light' },
         dark: { ...bootstrapDark, name: '', type: 'dark' }
       },
+      defaultColor: 'light-dark()',
       transformers: [
         transformerNotationDiff(),
         transformerNotationHighlight(),