Tapping "21,000,000 BTC" in the exceeds-max-supply warning now sets the BTC field to that value, on both Compose (Android/Desktop/Web) and the native SwiftUI screen (iOS/macOS) — Compose UI isn't rendered on iOS/macOS at all, so that side needed its own AttributedString-based link. The link is styled to match the surrounding warning text: Compose's LinkAnnotation otherwise falls back to the theme's accent color unless every interaction state's style is set explicitly, and SwiftUI renders `.link` runs in the accent color regardless of the Text's own foregroundColor modifier unless it's set directly on the link's AttributedString range. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QpjMKWGoiT5aJBzhxvXkwp