diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 4010e308..546bc16e 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -6,8 +6,10 @@
   outer outline is a blur over the whole sheet, and it lived in the same layer
   as the plan: any mouse movement made the engine re-run it. The outline now
   keeps its own layer. Measured on a demo-stand pan, rasterization fell from
-  fifteen times a static background to the same order as one. The picture is
-  unchanged, to the pixel
+  fifteen times a static background to the same order as one. The view is the
+  same: the outline around the plan matches pixel for pixel, and the hatch
+  inside the walls is anti-aliased a shade differently — splitting the layer
+  moves it by a sub-pixel
   ([#532](https://github.com/Matysh/houseplan-card/issues/532)).
 
 ## v1.74.0 — 2026-09-11
diff --git a/docs/CHANGELOG.ru.md b/docs/CHANGELOG.ru.md
index 246dafc0..1455848a 100755
--- a/docs/CHANGELOG.ru.md
+++ b/docs/CHANGELOG.ru.md
@@ -12,8 +12,9 @@
   это размытие по габариту всего листа, и оно жило в общем слое с планом: любое
   движение мыши заставляло движок прогонять его заново. Теперь контур держится
   отдельным слоем. Замер на панораме демо-стенда: растеризация упала с
-  пятнадцатикратной к статичному фону до сопоставимой с ним. Картинка
-  не изменилась ни на пиксель
+  пятнадцатикратной к статичному фону до сопоставимой с ним. Вид прежний:
+  ореол вокруг плана совпадает пиксель в пиксель, а штриховка внутри стен
+  сглаживается чуть иначе — разделение слоёв сдвигает её на субпиксель
   ([#532](https://github.com/Matysh/houseplan-card/issues/532)).
 
 ## v1.74.0 — 2026-09-11
diff --git a/docs/SUN.md b/docs/SUN.md
index 0e8cc39d..864a4446 100644
--- a/docs/SUN.md
+++ b/docs/SUN.md
@@ -79,9 +79,13 @@ The public setting remains a two-value selector. `static` uses `bg_color`.
   is kept on its own compositing layer (`will-change: filter`, scoped to the
   day-cycle stage). The group holds paper silhouettes only and does not change
   while the plan is hovered or panned; without the hint every repaint of the
-  plan re-ran three blur passes over the whole sheet, which cost a Firefox
-  window about fifteen times the rasterization of a static background (#532).
-  A static background carries neither the filter nor the hint.
+  plan re-ran three blur passes over the whole sheet. Measured in headless
+  Chromium (CDP tracing, summed `RasterTask`) on a demo-stand pan, that cost
+  about fifteen times the rasterization of a static background; the owner's
+  Firefox profile that opened #532 showed the same cause as 23 MB of texture
+  uploads per frame and about nine frames per second, without a comparable
+  ratio of its own. A static background carries neither the filter nor the
+  hint.
 - Only the environment and the zero-offset alpha-aware outline outside the
   grouped plan-paper footprint change. The plan, paper, floors, room fills,
   Glow/spill, devices, labels, decor/backdrop, vacuum, hover, and window rays