Prior to Facebook Connect in October 2021 (during which Facebook, Inc. announced its rebranding as "Meta" to emphasize its development of "metaverse"-related technologies),[5][6] CEO Mark Zuckerberg and CTO Andrew Bosworth posted photos of themselves testing prototype headsets, which they stated to have "Retina resolution" displays (alluding to the Apple Inc. trademark for high-resolution displays),[7] while leaked demo videos and references to an "Oculus Pro" headset were also discovered on the Oculus website and unreleased system software.[8] During the event, Zuckerberg officially announced that the company was developing a headset codenamed "Project Cambria" as part of the Oculus Quest line of products, which would be a high-end product aimed at mixed reality applications, and feature a slimmer design, high-resolution color passthrough cameras, infrared depth sensors, and eye tracking.[9][10]