diff --git a/custom_components/houseplan/const.py b/custom_components/houseplan/const.py
index fdc3729a..810db73a 100755
--- a/custom_components/houseplan/const.py
+++ b/custom_components/houseplan/const.py
@@ -45,7 +45,7 @@ PLAN_ORPHAN_TTL_S = 3600
 SCHEDULED_GRACE_S = 30 * 24 * 3600
 FILES_DIR = "houseplan/files"
 CONF_ADMIN_ONLY = "admin_only"
-VERSION = "1.55.1"
+VERSION = "1.55.2"
 
 DEFAULT_CONFIG: dict = {
     "spaces": [],
diff --git a/custom_components/houseplan/frontend/houseplan-card.js b/custom_components/houseplan/frontend/houseplan-card.js
index 82598aa3..2c777403 100755
--- a/custom_components/houseplan/frontend/houseplan-card.js
+++ b/custom_components/houseplan/frontend/houseplan-card.js
@@ -3076,4 +3076,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.1 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/custom_components/houseplan/manifest.json b/custom_components/houseplan/manifest.json
index 95159293..22a134ad 100755
--- a/custom_components/houseplan/manifest.json
+++ b/custom_components/houseplan/manifest.json
@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.55.1"
+  "version": "1.55.2"
 }
diff --git a/demo/srv/assets/houseplan-card.js b/demo/srv/assets/houseplan-card.js
index 82598aa3..2c777403 100755
--- a/demo/srv/assets/houseplan-card.js
+++ b/demo/srv/assets/houseplan-card.js
@@ -3076,4 +3076,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.1 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/dist/houseplan-card.js b/dist/houseplan-card.js
index 82598aa3..2c777403 100755
--- a/dist/houseplan-card.js
+++ b/dist/houseplan-card.js
@@ -3076,4 +3076,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.1 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}so.properties={_hdrH:{state:!0},_booting:{state:!0},_bootFading:{state:!0},_tapConfirm:{state:!0},hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_rszSel:{state:!0},_rszLive:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_kioskDialog:{state:!0},_vacFit:{state:!0},_kioskDots:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_roomEditId:{state:!0},_roomFill:{state:!0},_roomTempSrc:{state:!0},_roomHumSrc:{state:!0},_roomSrcOpen:{state:!0},_roomSrcFilter:{state:!0},_roomNameScale:{state:!0},_roomLabelScale:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},so.ZOOM_MAX=8,so.ZOOM_MIN=.4,so._touchSeen=!1,so._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,so.styles=Ps,customElements.get("houseplan-card")||customElements.define("houseplan-card",so),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.55.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 320bdb35..55708fb3 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,34 @@
 # Changelog
 
+## v1.55.2 — 2026-08-02
+
+Patch release: a calmer first open — no zoom flash and no layout jumps
+while Home Assistant is still settling — plus a new background color
+setting and two bits of editor polish.
+
+- **Opening a plan no longer flashes the default view before your saved
+  zoom** (HP-1551). The saved zoom used to be applied a beat after the
+  first render, so the card painted the default fit for a frame and then
+  snapped to your position. It is now applied synchronously, before the
+  first paint — the plan appears exactly where you left it.
+- **A first-open veil hides the plan until the layout settles**
+  (HP-1552). While Home Assistant is still loading its side panels, the
+  stage height can change several times, and the plan visibly jumped
+  along with it. The card now waits under a dark veil with a pulsing
+  house outline until the height stops moving, then reveals the plan
+  already in place. Kiosk mode skips the veil entirely.
+- **New setting: background color around the plan** (HP-1554). The area
+  around the plan can now be any color — set it in general settings for
+  the whole card, or override it per space. The backend validates the
+  value as a #rrggbb hex color.
+- **Round caps and joins on background-editor lines** (HP-1553). Strokes
+  used to end and meet in square cuts; line ends and corners are rounded
+  now, so traced walls and outlines look clean.
+- **The Resize tool's wall handles now look the part.** They are half
+  the previous size, show a wall-with-arrows glyph that rotates to
+  follow the wall, and use the grab cursor — while the hit area stays
+  exactly as large as before.
+
 ## v1.55.1 — 2026-08-01
 
 Patch release: the four findings of the v1.55.0 audit, all in the new
diff --git a/docs/CHANGELOG.ru.md b/docs/CHANGELOG.ru.md
index 35f25243..0745e27d 100755
--- a/docs/CHANGELOG.ru.md
+++ b/docs/CHANGELOG.ru.md
@@ -6,6 +6,35 @@
 > **Правило проекта:** оба файла пополняются в одном коммите с самим
 > изменением — как и остальная документация (см. docs/STATUS.md).
 
+## v1.55.2 — 2026-08-02
+
+Патч-релиз: спокойное первое открытие — без вспышки зума и прыжков
+макета, пока Home Assistant догружается, — плюс новая настройка цвета
+фона и две полировки редактора.
+
+- **План больше не мигает видом по умолчанию перед сохранённым зумом**
+  (HP-1551). Сохранённый зум применялся на такт позже первого рендера:
+  карточка на кадр рисовала стандартную подгонку и лишь потом прыгала к
+  вашей позиции. Теперь он применяется синхронно, до первой отрисовки —
+  план появляется ровно там, где вы его оставили.
+- **Вуаль первого открытия прячет план, пока макет не устаканится**
+  (HP-1552). Пока Home Assistant догружает свои панели, высота сцены
+  может меняться несколько раз, и план заметно прыгал вместе с ней.
+  Теперь карточка ждёт под тёмной вуалью с пульсирующим контуром домика,
+  пока высота не перестанет меняться, и показывает план уже на месте.
+  В режиме киоска вуаль не показывается вовсе.
+- **Новая настройка: цвет фона вокруг плана** (HP-1554). Области вокруг
+  плана теперь можно задать любой цвет — в общих настройках для всей
+  карточки или отдельно для каждого пространства. Бэкенд проверяет
+  значение как hex-цвет #rrggbb.
+- **Круглые концы и стыки линий в редакторе подложки** (HP-1553). Штрихи
+  обрывались и стыковались квадратными срезами; теперь концы линий и
+  углы скруглены — обведённые стены и контуры выглядят аккуратно.
+- **Ручки стен в инструменте Resize теперь выглядят по делу.** Они вдвое
+  меньше прежних, несут значок «стенка со стрелочками», повёрнутый вдоль
+  своей стены, и показывают курсор grab — при этом зона клика осталась
+  прежней, большой.
+
 ## v1.55.1 — 2026-08-01
 
 Патч-релиз: четыре находки аудита v1.55.0, все — в новом инструменте
diff --git a/docs/STATUS.md b/docs/STATUS.md
index ac8a2079..ec4a7ab9 100644
--- a/docs/STATUS.md
+++ b/docs/STATUS.md
@@ -15,12 +15,12 @@
 
 | Item | State |
 |---|---|
-| Version | **v1.55.1** everywhere (manifest, const.py, package.json, CARD_VERSION); deployed to the home instance |
+| Version | **v1.55.2** everywhere (manifest, const.py, package.json, CARD_VERSION); deployed to the home instance |
 | Workflow | Since 2026-07-22: minor changes go to branch **`dev`** (build + smokes → deploy home → commit → push, NO release); releases are batched on the owner's command (merge dev→main, one tag, one release with a summary changelog, CI checked on dev beforehand) |
 | GitHub | https://github.com/Matysh/houseplan-card — **`main` carries every published release, the latest tag is the current version above**; `dev` is where work lands and is merged into `main` at release time (so `dev` is normally equal to or ahead of `main`, never behind). Push via SSH key `ha_jb` (remote git@github.com:…); API releases via the fine-grained PAT in `~/.git-credentials` (Contents R/W, issued 2026-07-23) |
 | CI | validate.yml (hacs + hassfest + frontend + backend) green; release.yml attaches the bundle on release publish |
 | HACS | Custom repository works. **Inclusion PR: hacs/default#9004** — open, valid, labeled, mergeable clean, never drafted. Queue: 1212 open, 835 older than ours. Merge rate COLLAPSED: 75 in July but almost all in the first decade, 0 in the last week (checked 2026-07-29) — maintainers process in rare bursts; ETA unknowable, months at best. Nothing actionable on our side |
-| Home instance | ha.jbstudio.pro (SSH port **22222**, key `ha_jb`; HA config root is `/mnt/data/supervisor/homeassistant` — `/config` does NOT exist in this SSH environment), deployed **v1.55.1** via direct copy (HACS custom repo also installed) |
+| Home instance | ha.jbstudio.pro (SSH port **22222**, key `ha_jb`; HA config root is `/mnt/data/supervisor/homeassistant` — `/config` does NOT exist in this SSH environment), deployed **v1.55.2** via direct copy (HACS custom repo also installed) |
 | Localization | UI en/ru (src/i18n/*.json), everything user-visible localized incl. kiosk popover |
 | Tests | Four layers: frontend unit (`npm test`, node:test over `test-build/`), pure backend (`pytest tests_backend`, runs anywhere), HA-harness backend (same folder, CI only — needs py3.13 + pytest-homeassistant-custom-component), and browser smokes (`demo/smoke_*.mjs`, headless chromium). **Counts are not written down here** — they went stale within two releases while the version line beside them was kept current, which reads as less coverage than exists (review R5-2). Run `npm run inventory` for the current numbers, or read them off the last CI run |
 | Vacuums | Live robot vacuums shipped (docs/VACUUM.md): puck, server-side trails with display modes, fit-panel calibration. Verified on a live Dreame X50 Master |
diff --git a/package-lock.json b/package-lock.json
index 6d95edb9..e3f4f138 100755
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "houseplan-card",
-  "version": "1.55.1",
+  "version": "1.55.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "houseplan-card",
-      "version": "1.55.1",
+      "version": "1.55.2",
       "license": "MIT",
       "dependencies": {
         "lit": "^3.1.3",
diff --git a/package.json b/package.json
index 5de10e1d..e0a2324c 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.55.1",
+  "version": "1.55.2",
   "description": "Interactive house plan Lovelace card for Home Assistant",
   "license": "MIT",
   "type": "module",
diff --git a/src/houseplan-card.ts b/src/houseplan-card.ts
index d9b521a1..7bb3feb0 100755
--- a/src/houseplan-card.ts
+++ b/src/houseplan-card.ts
@@ -47,7 +47,7 @@ import { cardStyles } from './styles';
 import { fitInSquare, contentBounds, spaceModels } from './space-geometry';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.55.1';
+const CARD_VERSION = '1.55.2';
 const LS_KEY = 'houseplan_card_layout_v1';
 const LS_CFG = 'houseplan_card_cfg_v1'; // cache of the server config+layout for instant rendering
 const LS_ZOOM = 'houseplan_card_zoom_v1';