Apple Advanced Typography

Get specifications for the TrueType font format and the Apple Advanced Typography (AAT) Font Feature Registry for advanced font rendering.

Software · by Apple Inc. · developer.apple.com

Open Apple Advanced Typography in AirStack

What Apple Advanced Typography’s own pages say

What it says it doesGet specifications for the TrueType font format and the Apple Advanced Typography (AAT) Font Feature Registry for advanced font rendering. developer.apple.com

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.