Boundaries only; the wallpaper animation is unchanged. Yellow areas stay out of the motion until you confirm. This is not the final fine mask.
English version of the page Codex built on 19 September 2026 (first draft, delivered 04:51). Only the words were translated; the markup, the regions, the masks and the script are the originals. 中文原版 · Back to the case study
The base painting (courtyard-day.webp) is not on the server yet; the regions are drawn over a blank canvas.