Style tool tags with MathWorks blue background and white text

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: robertogl

index.html

@@ -251,10 +251,10 @@
         }
 
         .tool-tag {
-            background: var(--tool-bg);
-            border: 1px solid var(--tool-border);
-            color: var(--text-muted);
-            padding: 0.15rem 0.5rem;
+            background: #0076a8;
+            border: none;
+            color: #ffffff;
+            padding: 0.2rem 0.6rem;
             border-radius: 3px;
             font-size: 0.72rem;
             font-weight: 500;