Guidance for Implementing Liquid Glass Design in AppKit from Xcode AdditionalDocumentation. Use when implementing, updating, or reviewing related features and you need to consult the local Xcode doc at /Applications/Xcode.app/Contents/PlugIns/IDEIntelligenceChat.framework/Versions/Current/Resources/AdditionalDocumentation/AppKit-Implementing-Liquid-Glass-Design.md. (Xcode 26.2 17C52)