app-icon-generator

# App Icon Generator Generate an app icon programmatically with a CoreGraphics Swift script, resize it to every required size, and install it into the Xcode asset catalog — with appearance variants (light/dark/tinted). ## Read first — the Liquid Glass era (iOS 26 / macOS 26) > **Apple icon standards verified as of July 2026** — Icon Composer, Xcode 26, macOS Tahoe 26.4+. This guidance is static (the skill does no per-run web lookup); if that date is well in the past or the OS has moved on, re-verify against the [HIG · App icons](https://developer.apple.com/design/human-interface-guidelines/app-icons) before trusting the specifics below. Apple's shippable icon format changed. On iOS 26 / macOS 26 the modern app icon is a **layered, light-responsive Liquid Glass icon** authored in **Icon Composer** (free; ships with Xcode 26, needs macOS Tahoe 26.4+). You supply *flat* artwork in up to **four depth groups** (background → foreground); the **system renders the glass** — specular highlights, refraction, translucency, shadows — and masks the rounded-rect shape. One `.icon` file adapts across iPhone, iPad, Mac, and Apple Watch and across **Default / Dark / Mono (tinted)** appearances. **So this skill does NOT produce the final iOS 26 icon.** Icon Composer is GUI-first; no script can author a true layered `.icon`. Its two honest roles are: 1. **Placeholder** — a fast flat 1024 PNG so early builds, TestFlight, and screenshots feel real before you invest in the real icon. 2. **La...