feat: add dark/light theme switcher#20
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Closes #6 - Adds useTheme hook with localStorage persistence and system preference fallback - Adds Moon/Sun toggle button in sidebar header - Enables Tailwind darkMode: 'class'
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| const [dark, setDark] = useState<boolean>(() => { | ||
| const saved = localStorage.getItem("theme"); | ||
| if (saved) return saved === "dark"; | ||
| return window.matchMedia("(prefers-color-scheme: dark)").matches; |
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CRITICAL: SSR compatibility issue - window is undefined on server side
The window.matchMedia call will throw a ReferenceError during server-side rendering (SSR) or in any Node.js environment. The fallback for system preference detection needs a guard for window availability.
Suggested change
| return window.matchMedia("(prefers-color-scheme: dark)").matches; | |
| if (saved) return saved === "dark"; | |
| return typeof window !== "undefined" && window.matchMedia("(prefers-color-scheme: dark)").matches; |
This check ensures the code gracefully handles environments where window doesn't exist.
Reply with @kilocode-bot fix it to have Kilo Code address this issue.
Code Review SummaryStatus: 1 Issue Found | Recommendation: Address before merge Overview
Issue Details (click to expand)CRITICAL
Files Reviewed (2 files)
Fix these issues in Kilo Cloud Reviewed by laguna-m.1-20260312:free · Input: 213.3K · Output: 3.8K · Cached: 356.8K |
nadimtuhin
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Jun 28, 2026
Closes #6 - Adds useTheme hook with localStorage persistence and system preference fallback - Adds Moon/Sun toggle button in sidebar header - Enables Tailwind darkMode: 'class'
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Closes #6
Adds dark/light theme toggle:
useThemehook persists preference in localStorageprefers-color-schemeon first visitdarkMode: 'class'in tailwind.config.js