Revised from your marks: R1–R4 added as water, K1–K3 removed and fixed, the lamp B kept fixed. Only the overlay changed; the animation is untouched.
English version of the page Codex built on 19 September 2026 (second draft, delivered 05:00). 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.