One of the most annoying bug I'm facing while watching YouTube with dark mode on.

There always is a gray impression on the both sides(above and below) of the picture. As dark theme turned on,it supposed to be complete dark right? but no, there's always a gray aura present over screen...super super annoying 👎👎 as YouTube is one of the most used app of daily life.

Device -IQOO Neo 9 Pro 

@iQOOIndia Pls fix it.