diff --git a/frontend/src/hooks/useRainbowTheme.ts b/frontend/src/hooks/useRainbowTheme.ts
index 449b07c61..8b272b883 100644
--- a/frontend/src/hooks/useRainbowTheme.ts
+++ b/frontend/src/hooks/useRainbowTheme.ts
@@ -11,6 +11,8 @@ interface RainbowThemeHook {
   deactivateRainbow: () => void;
 }
 
+const allowRainbowMode = false; // Override to allow/disallow fun
+
 export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): RainbowThemeHook {
   // Get theme from localStorage or use initial
   const [themeMode, setThemeMode] = useState<ThemeMode>(() => {
@@ -35,11 +37,11 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
   // Save theme to localStorage whenever it changes
   useEffect(() => {
     localStorage.setItem('stirling-theme', themeMode);
-    
+
     // Apply rainbow class to body if in rainbow mode
     if (themeMode === 'rainbow') {
       document.body.classList.add('rainbow-mode-active');
-      
+
       // Show easter egg notification
       showRainbowNotification();
     } else {
@@ -77,7 +79,7 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
       pointer-events: none;
       transition: opacity 0.3s ease;
     `;
-    
+
     document.body.appendChild(notification);
 
     // Auto-remove notification after 3 seconds
@@ -121,7 +123,7 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
       pointer-events: none;
       transition: opacity 0.3s ease;
     `;
-    
+
     document.body.appendChild(notification);
 
     // Auto-remove notification after 2 seconds
@@ -144,7 +146,7 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
     }
 
     const currentTime = Date.now();
-    
+
     // Simple exit from rainbow mode with single click (after cooldown period)
     if (themeMode === 'rainbow') {
       setThemeMode('light');
@@ -152,7 +154,7 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
       showExitNotification();
       return;
     }
-    
+
     // Reset counter if too much time has passed (2.5 seconds)
     if (currentTime - lastToggleTime.current > 2500) {
       toggleCount.current = 1;
@@ -162,18 +164,18 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
     lastToggleTime.current = currentTime;
 
     // Easter egg: Activate rainbow mode after 10 rapid toggles
-    if (toggleCount.current >= 10) {
+    if (allowRainbowMode && toggleCount.current >= 10) {
       setThemeMode('rainbow');
       console.log('🌈 RAINBOW MODE ACTIVATED! 🌈 You found the secret easter egg!');
       console.log('🌈 Button will be disabled for 3 seconds, then click once to exit!');
-      
+
       // Disable toggle for 3 seconds
       setIsToggleDisabled(true);
       setTimeout(() => {
         setIsToggleDisabled(false);
         console.log('🌈 Theme toggle re-enabled! Click once to exit rainbow mode.');
       }, 3000);
-      
+
       // Reset counter
       toggleCount.current = 0;
       return;
@@ -203,4 +205,4 @@ export function useRainbowTheme(initialTheme: 'light' | 'dark' = 'light'): Rainb
     activateRainbow,
     deactivateRainbow,
   };
-}
\ No newline at end of file
+}