: The tradition began with the Windows 7 Beta, featuring a realistic Betta fish . Designers included seven bubbles rising from the fish as a subtle nod to the version number.
: For the Windows 8 Consumer Preview, the fish was "Metro-ized"—reimagined using the new "Modern UI" design language. This version featured a more stylized, digital-looking fish with bubbles arranged to vaguely resemble the number 8 . 1920x1080 Windows 8 fish wallpaper. Fish wallpa...
Lead designer Jensen Harris later revealed that the default lock screen images were internal markers for design principles. While the Seattle Space Needle became the final RTM (Release to Manufacturing) image to showcase "Pride in Craftsmanship," the fish remained a cult favorite for enthusiasts who preferred the "Beta" look. img24 (Windows 7 Beta) - Windows Wallpaper Wiki - Miraheze : The tradition began with the Windows 7