Apple’s WWDC 2018 is about to kick off in a few hours and the company is expected to announce a number of key upgrades to its software suite, including macOS, tvOS, iOS, and watchOS.

Ladies and gentlemen, I give you Xcode 10 on macOS 10.14. Dark Appearance, Apple News, App Store w/ video previews pic.twitter.com/rJlDy81W4W

The next version of macOS might also feature another great addition to the software if a recent leak from renowned developer Steve Troughton-Smith is to be believed. Smith has posted images of macOS 10.14 which reveal interesting finds about Apple’s upcoming operating system. The images showcase an OS sporting a fresh new dark theme, which is believed to be a new toggle-able option added to macOS.

As of now, Apple hasn’t revealed any information regarding the dark mode, but we can expect to learn much more about the changes coming to macOS during the WWDC event which starts later today.