diff --git a/custom_components/houseplan/const.py b/custom_components/houseplan/const.py
index da356b04..29ecce88 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 = "1.51.2"
+VERSION = "1.51.3"
 
 DEFAULT_CONFIG: dict = {
     "spaces": [],
diff --git a/custom_components/houseplan/frontend/houseplan-card.js b/custom_components/houseplan/frontend/houseplan-card.js
index 0109c0b9..ed992736 100755
--- a/custom_components/houseplan/frontend/houseplan-card.js
+++ b/custom_components/houseplan/frontend/houseplan-card.js
@@ -942,7 +942,11 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
       z-index: 2;
     }
     .dev ha-icon {
-      --mdc-icon-size: calc(var(--icon-size, 2.5cqw) * 0.62);
+      /* from --dev-size, NOT --icon-size: the per-device size multiplier must
+         scale the GLYPH with its badge. Pinned to the base size, "make this
+         icon bigger" grew an empty box around a default-size glyph (user
+         report via the owner, 2026-07-29). */
+      --mdc-icon-size: calc(var(--dev-size, var(--icon-size, 2.5cqw)) * 0.62);
       display: flex;
       align-items: center;
       justify-content: center;
@@ -2668,4 +2672,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/custom_components/houseplan/manifest.json b/custom_components/houseplan/manifest.json
index 075b1a40..1d3a4c9b 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": "1.51.2"
+  "version": "1.51.3"
 }
diff --git a/demo/smoke_icon_scale.mjs b/demo/smoke_icon_scale.mjs
new file mode 100644
index 00000000..e2a5f17c
--- /dev/null
+++ b/demo/smoke_icon_scale.mjs
@@ -0,0 +1,38 @@
+// Множитель «размер значка» обязан масштабировать ГЛИФ вместе с подложкой:
+// --mdc-icon-size считался от базового --icon-size, и «увеличенный» значок
+// был пустой рамкой вокруг дефолтной иконки (репорт пользователя, 2026-07-29).
+import { launch, checkAll, finish } from './serve.mjs';
+const { page, browser } = await launch();
+const out = await page.evaluate(async () => {
+  const o = {};
+  const c = window.__card;
+  const sr = () => c.shadowRoot || c.renderRoot;
+  const d = c._devices.find((x) => x.space === 'f1' && x.bindingKind === 'device');
+  const glyphW = () => {
+    const el = [...sr().querySelectorAll('.dev')].find((e) => !e.classList.contains('ghost'));
+    const ic = el?.querySelector('ha-icon');
+    return ic ? ic.getBoundingClientRect().width : 0;
+  };
+  const badgeW = () => {
+    const el = [...sr().querySelectorAll('.dev')].find((e) => !e.classList.contains('ghost'));
+    return el ? el.getBoundingClientRect().width : 0;
+  };
+  // базовый размер
+  const g1 = glyphW(), b1 = badgeW();
+  // множитель ×3 на всех авто-устройствах через маркер первого
+  c._serverCfg.markers = (c._serverCfg.markers || []).filter((m) => m.id !== d.id);
+  c._serverCfg.markers.push({ id: d.id, binding: 'device:' + d.bindingRef, size: 3 });
+  c._cfgEpoch++; c._regSignature = '';
+  c._maybeRebuildDevices(); c.requestUpdate(); await c.updateComplete;
+  await new Promise((r) => setTimeout(r, 100));
+  const scaled = [...sr().querySelectorAll('.dev')].find((e) => (e.getAttribute('style') || '').includes('--dev-scale:3'));
+  const g3 = scaled?.querySelector('ha-icon')?.getBoundingClientRect().width || 0;
+  const b3 = scaled?.getBoundingClientRect().width || 0;
+  o.badgeScales = b3 > b1 * 2.5;
+  o.glyphScalesWithBadge = g3 > g1 * 2.5; // раньше глиф оставался базовым
+  o.glyphFillsBadge = g3 / b3 > 0.45 && g3 / b3 < 0.8; // пропорция сохранена
+  c._serverCfg.markers = c._serverCfg.markers.filter((m) => m.id !== d.id);
+  c._cfgEpoch++; c._regSignature = ''; c._maybeRebuildDevices();
+  return o;
+});
+await finish(browser, checkAll(out));
diff --git a/demo/srv/assets/houseplan-card.js b/demo/srv/assets/houseplan-card.js
index 0109c0b9..ed992736 100755
--- a/demo/srv/assets/houseplan-card.js
+++ b/demo/srv/assets/houseplan-card.js
@@ -942,7 +942,11 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
       z-index: 2;
     }
     .dev ha-icon {
-      --mdc-icon-size: calc(var(--icon-size, 2.5cqw) * 0.62);
+      /* from --dev-size, NOT --icon-size: the per-device size multiplier must
+         scale the GLYPH with its badge. Pinned to the base size, "make this
+         icon bigger" grew an empty box around a default-size glyph (user
+         report via the owner, 2026-07-29). */
+      --mdc-icon-size: calc(var(--dev-size, var(--icon-size, 2.5cqw)) * 0.62);
       display: flex;
       align-items: center;
       justify-content: center;
@@ -2668,4 +2672,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/dist/houseplan-card.js b/dist/houseplan-card.js
index 0109c0b9..ed992736 100755
--- a/dist/houseplan-card.js
+++ b/dist/houseplan-card.js
@@ -942,7 +942,11 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
       z-index: 2;
     }
     .dev ha-icon {
-      --mdc-icon-size: calc(var(--icon-size, 2.5cqw) * 0.62);
+      /* from --dev-size, NOT --icon-size: the per-device size multiplier must
+         scale the GLYPH with its badge. Pinned to the base size, "make this
+         icon bigger" grew an empty box around a default-size glyph (user
+         report via the owner, 2026-07-29). */
+      --mdc-icon-size: calc(var(--dev-size, var(--icon-size, 2.5cqw)) * 0.62);
       display: flex;
       align-items: center;
       justify-content: center;
@@ -2668,4 +2672,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
               </button>`}
         </div>
       </div>
-    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.2 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}fs.properties={_hdrH:{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},_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},_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}},fs.ZOOM_MAX=8,fs.ZOOM_MIN=.4,fs._touchSeen=!1,fs._noHoverMq="undefined"!=typeof window&&"function"==typeof window.matchMedia&&window.matchMedia("(hover: none)").matches,fs.styles=Wi,customElements.get("houseplan-card")||customElements.define("houseplan-card",fs),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 v1.51.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 0c03d061..9c5dfb54 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## v1.51.3 — 2026-07-29
+
+- **The icon size multiplier scales the glyph, not just the badge.** Changing
+  a device's size grew the badge, the ripple and the value badges but left
+  the icon itself at its default size — a big empty box around a small glyph
+  (user report). The glyph now derives from the same per-device size as
+  everything else and keeps its proportion at any multiplier and zoom.
+
 ## v1.51.2 — 2026-07-29
 
 **From the v1.51.1 review**
diff --git a/docs/CHANGELOG.ru.md b/docs/CHANGELOG.ru.md
index 83f4816f..9559638e 100755
--- a/docs/CHANGELOG.ru.md
+++ b/docs/CHANGELOG.ru.md
@@ -6,6 +6,15 @@
 > **Правило проекта:** оба файла пополняются в одном коммите с самим
 > изменением — как и остальная документация (см. docs/STATUS.md).
 
+## v1.51.3 — 2026-07-29
+
+- **Множитель «размер значка» масштабирует и сам глиф, а не только
+  подложку.** Изменение размера устройства растило подложку, пульсацию и
+  бейджи значений, но иконка внутри оставалась дефолтной — большая пустая
+  рамка вокруг маленького глифа (репорт пользователя). Теперь глиф считается
+  от того же поустройственного размера, что и всё остальное, и держит
+  пропорцию при любом множителе и зуме.
+
 ## v1.51.2 — 2026-07-29
 
 **По ревью v1.51.1**
diff --git a/docs/STATUS.md b/docs/STATUS.md
index a86fe80b..078a64d2 100644
--- a/docs/STATUS.md
+++ b/docs/STATUS.md
@@ -15,12 +15,12 @@
 
 | Item | State |
 |---|---|
-| Version | **v1.51.2** everywhere (manifest, const.py, package.json, CARD_VERSION); deployed to the home instance |
+| Version | **v1.51.3** 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; ~864 older open PRs but merge rate ≈180/mo; realistic ETA 1–3 months (checked 2026-07-24) |
-| 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 **v1.51.2** 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 **v1.51.3** 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 |
 | Community | **Telegram chat: https://t.me/ha_houseplan** (created 2026-07-27) — the primary user-facing support channel; GitHub issues stay for bugs/features. Link it from any new release notes and posts |
diff --git a/docs/TESTING.md b/docs/TESTING.md
index 74e75a77..aefd6e5d 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -244,6 +244,9 @@ Run the *core flows* (marked ★ below) in each environment at least once per mi
       at 70% of a device icon and zooming WITH the plan; the small metric rows
       under the room name now show in the plan editor too
       [auto: smoke_room_cards gearDetached/plainInPlan]
+- [ ] Icon size multiplier scales the glyph (dev): set a marker's size to 3 —
+      the icon inside grows with the badge instead of staying default
+      [auto: smoke_icon_scale]
 - [ ] Auto-grid parity (v1.51.2, HP-1511-01): with an empty layout, a visible
       device among hidden ones sits at the same spot on both cards
       [auto: smoke_hidden_flag autoGridParity]
diff --git a/package-lock.json b/package-lock.json
index 452f1713..40df951e 100755
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "houseplan-card",
-  "version": "1.51.2",
+  "version": "1.51.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "houseplan-card",
-      "version": "1.51.2",
+      "version": "1.51.3",
       "license": "MIT",
       "dependencies": {
         "lit": "^3.1.3",
diff --git a/package.json b/package.json
index 21e132f2..93ef1c47 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.51.2",
+  "version": "1.51.3",
   "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 9cafd78e..8373dadb 100755
--- a/src/houseplan-card.ts
+++ b/src/houseplan-card.ts
@@ -36,7 +36,7 @@ import { cardStyles } from './styles';
 import { fitInSquare, contentBounds, spaceModels } from './space-geometry';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.51.2';
+const CARD_VERSION = '1.51.3';
 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';
diff --git a/src/styles.ts b/src/styles.ts
index 0e1747e6..b2e8ff06 100644
--- a/src/styles.ts
+++ b/src/styles.ts
@@ -939,7 +939,11 @@ export const cardStyles = css`
       z-index: 2;
     }
     .dev ha-icon {
-      --mdc-icon-size: calc(var(--icon-size, 2.5cqw) * 0.62);
+      /* from --dev-size, NOT --icon-size: the per-device size multiplier must
+         scale the GLYPH with its badge. Pinned to the base size, "make this
+         icon bigger" grew an empty box around a default-size glyph (user
+         report via the owner, 2026-07-29). */
+      --mdc-icon-size: calc(var(--dev-size, var(--icon-size, 2.5cqw)) * 0.62);
       display: flex;
       align-items: center;
       justify-content: center;