This is a new feature to provide you a real time dynamic background. It's the only browser extension that have that amazing feature inside and that make Turn Off the Lights quite unique. You can choose for about five special effects with still focus the video element to the front of the web page.
Dynamic background is created with only HTML and CSS3 code. And that needs some power for smoother animation. That is why it uses the "Mutation Observer" (It's a way to react to changes in a DOM), that's in use in the most browsers like Chrome, Safari and Firefox. It is designed as a replacement for Mutation Events defined in the DOM3 Events specification. It’s all highly advanced technology that simply disappears as you use it. So you don’t notice anything.
When you are in the Turn Off the Lights options page, click on the button "Show More" to see the list of dynamic backgrounds. There you see first the Fish Tank option. This shows you few water bubbles continues come up on your screen.
The second option, is the square blocks that pulsate on a random time period over whole your screen.
It's not going to rain in your home, but here you see raindrops falling on your screen.
This show you random cloud moving to another position of your screen.
The amazing option that you surely like it, the Space background. This lets you see the moving stars is coming in front of you, something like you are in a space ship.
And it's true that Turn Off the Lights browser extension make it much more engaging and delightful. The experience as you’ve never seen it can be downloaded very easily on your browser with a single click. Download it now and the fun start today.