Feat: Replace color variables according to design draft #3221 (#9305)

### What problem does this PR solve?

Feat: Replace color variables according to design draft #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/version-dialog/index.tsx

@@ -92,7 +92,7 @@ export function VersionDialog({
                   <section className="flex justify-between">
                     <div>
                       <div className="pb-1 truncate">{agent?.title}</div>
-                      <p className="text-text-sub-title text-xs">
+                      <p className="text-text-secondary text-xs">
                         Created: {formatDate(agent?.create_date)}
                       </p>
                     </div>