[View Demo](https://plnkr.co/edit/aCqESjIga6A3Tgr9) Appearance of panel headers <img width="1113" height="458" alt="Image" src="https://github.com/user-attachments/assets/c39b33cb-9151-450f-b08d-53ecd3b2cf0f" /> Animation https://github.com/user-attachments/assets/2c76ef7e-b8bd-42de-919c-c433d3727019
