tornikegomareli/aurora

Aurora is a Swift library for iOS app developers who want to add the animated glowing border and shimmering text effects that Apple uses in its Apple Intelligence AI features, the colorful, flowing light rings seen around Siri and other AI interactions on recent iPhones. The library reverse-engineered the visual algorithm from Apple's own framework and reimplements it from scratch using Metal, Apple's low-level graphics programming interface, for high performance. The library provides two main components. The first is AuroraGlow, which adds an animated glowing ring around any view or screen edge. You can apply it to a single card, a full screen, or even your entire app. The second is AuroraText, which fills text characters with the same flowing, colorful shimmer, the iconic look Apple uses for AI-generated text appearing on screen. Both components are highly customizable. You choose from three intensity presets, subtle, standard, or dramatic, six built-in color palettes including the default Apple Intelligence palette, ocean, sunset, and cyberpunk, or define your own colors. You can also control intro and outro animations, speed, corner radius, border width, and glow size. Semantic mood presets let you quickly match the glow to app states, for example a blue listening look when the AI is waiting for input, a slower thinking look during processing, and red or green for error and success states. There is also a built-in glow while loading modifier designed for streaming AI responses. The library requires iOS 17 or newer and is installed via Swift Package Manager. An examples project with eight demo screens is included. The license is MIT.