1. Is there an option to add top and bottom borders to tracks in IGV.JS like possible from desktop IGV? <img width="896" height="144" alt="Image" src="https://github.com/user-attachments/assets/d6b18d96-cdd2-47a1-93bc-388801d160da" /> 2. Is there an option to add mid data range values to tracks in IGV.JS like possible from desktop IGV? <img width="1458" height="433" alt="Image" src="https://github.com/user-attachments/assets/6e89540c-eaf2-43b1-bc60-75bb4fa8cb43" />