The spec still listed undo, the eraser, colours and smoothing as
missing. Describe the ink engine and palm rejection as built (draw vs
navigate intents, settings toggles, cancelled pointers), the plus
buttons, fling offer, grid and page size dialog, note that sync is
GitHub-only, and replace the stale open item with the real ones.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GaoZtJQZwLXkEgWs8twCia
