Some Apple Watch owners noticed a strange gray/green display tint after installing watchOS 9.5, but it's most likely a software bug that should be fixed soon.
Strange Apple Watch display tint after installing watchOS 9.5? You’re not alone
watchOS 9.5
watchOS 9.5 releases: Pride Celebration watch face, new beta installation method
Though omitted from the watchOS 9.5 release notes, Apple's simplified installation method for Apple Watch beta updates is also included in this update.
Apple confirms it will release iOS 16.5 and watchOS 9.5 next week
Apple has announced the release date for iOS 16.5 and watchOS 9.4: next week. iOS 16.5 and watchOS 9.5 are required for the new Pride Celebration watch face and iPhone wallpaper, but iOS 16.5 also has two new features.