diff --git a/frontend/angular/components-signals.md b/frontend/angular/components-signals.md
index 31adc19..081bdac 100644
--- a/frontend/angular/components-signals.md
+++ b/frontend/angular/components-signals.md
@@ -26,7 +26,7 @@ The `@Input()` decorator operates outside the Signals reactivity system. Changes
 title = input<string>('');
 ```
 
-### Structural Comparison: Signals vs RxJS
+### ⚖️ Structural Comparison: Signals vs RxJS
 
 | Feature | Signals (`signal`, `computed`) | RxJS (`BehaviorSubject`, `Observable`) |
 | :--- | :--- | :--- |
diff --git a/frontend/javascript/testing.md b/frontend/javascript/testing.md
index 1ba4b2b..e909bdf 100644
--- a/frontend/javascript/testing.md
+++ b/frontend/javascript/testing.md
@@ -59,7 +59,7 @@ test('update user', () => {
 });
 ```
 
-### Structural Comparison: Unit Testing vs Integration Testing vs E2E
+### ⚖️ Structural Comparison: Unit Testing vs Integration Testing vs E2E
 
 | Feature | Unit Testing | Integration Testing | End-to-End (E2E) Testing |
 | :--- | :--- | :--- | :--- |
diff --git a/frontend/react/performance.md b/frontend/react/performance.md
index 795a65d..7565c1a 100644
--- a/frontend/react/performance.md
+++ b/frontend/react/performance.md
@@ -51,7 +51,7 @@ function UserList({ users }) {
 }
 ```
 
-### Structural Comparison: Manual Memoization vs React Compiler
+### ⚖️ Structural Comparison: Manual Memoization vs React Compiler
 
 | Feature | Manual Memoization (`useMemo`, `useCallback`) | React Compiler |
 | :--- | :--- | :--- |
diff --git a/frontend/typescript/objects-functions.md b/frontend/typescript/objects-functions.md
index 1beff2d..2c91100 100644
--- a/frontend/typescript/objects-functions.md
+++ b/frontend/typescript/objects-functions.md
@@ -144,7 +144,7 @@ abstract class BaseService {
 }
 ```
 
-### Structural Comparison: Abstract Classes vs Interfaces
+### ⚖️ Structural Comparison: Abstract Classes vs Interfaces
 
 | Feature | Abstract Classes | Interfaces |
 | :--- | :--- | :--- |