YouTube is rolling out its new dark mode feature on android. How to enable

As we all know YouTube has a dark mode for its web user but for android users it is not available.
It is most awaited features for YouTube users.
Now wait is finished and YouTube is rolling out this feature.

How to use

As YouTube has recently starting rolling out this feature user to user so you have to wait till YouTube give you this feature if get get this you will get a notification on your feed you can directly use dark mode from their.
Thank you...