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fix: prioritize shikiTheme prop over code plugin default theme #497

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fix: prioritize shikiTheme prop over code plugin default theme #497

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576a9c6
fix: prioritize shikiTheme prop over code plugin default theme
sleitor Apr 3, 2026
2182c43
fix: make all three shikiTheme priority levels reachable
sleitor Apr 8, 2026
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7 changes: 7 additions & 0 deletions .changeset/fix-shiki-theme-priority.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
---
"streamdown": patch
---

Fix: `shikiTheme` prop now takes priority over the code plugin's default theme.

Previously, the nullish coalescing order was incorrect, causing the code plugin's `getThemes()` to override the explicitly passed `shikiTheme` prop. The order has been swapped so the prop takes precedence.
2 changes: 1 addition & 1 deletion packages/streamdown/index.tsx
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Expand Up @@ -609,7 +609,7 @@ export const Streamdown = memo(
// Combined context value - single object reduces React tree overhead
const contextValue = useMemo<StreamdownContextType>(
() => ({
shikiTheme: plugins?.code?.getThemes() ?? shikiTheme,
shikiTheme: shikiTheme ?? plugins?.code?.getThemes(),
controls,
isAnimating,
lineNumbers,
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