Turn down the lights

[ydoaPs]

What's the deal with YouTube's new "turn down the lights" feature? There's a lightbulb icon above the videos and if you click it, the screen darkens around the video viewer.

[Sisyphus]

If you're asking what the point of it is, I'm guessing it's the same reason they darken theaters. Less distraction from the movie, more discreet making out, etc.

[Sayonara]

It's copied directly from Adobe Photoshop Lightroom's "Dim the Lights" feature. As Syphilis says, it's to help you focus your vision on the video by minimising visual distractions.