Hey there. It's been a while ☺ I also thought it'd be fun to turn off the lights and play with the light setting and tap! So if u don't like how it looks, just out ur phone down and listen~ Feel free to leave suggestions as they are greatly appreciated!
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app