Vivaldi is a great new web browser, and it's big pitch is that it's the browser you can customize to your heart's content. I use it at work and it's fantastic!
Their latest addition is…interesting. Vivaldi can already modify it's chrome (pun not intended) to match the site you're looking at, but this new feature takes that to whole new bizarre levels. I'll let you check out the blog post to see the specifics, but I'll give it this, no other browser has this specific feature. I wouldn't recommend using this new feature in your office.