feat v1.24.2: 'no light sources' color in the lights fill group

Default opacity 0 preserves the historical no-fill behavior; assigning an
opacity tints lightless rooms distinguishably from 'all lights off'.

src/houseplan-card.ts

@@ -31,7 +31,7 @@ import './space-card';
 import { cardStyles } from './styles';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.24.1';
+const CARD_VERSION = '1.24.2';
 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';
@@ -2157,6 +2157,7 @@ class HouseplanCard extends LitElement {
           <label class="dispsection">${this._t('gs.light_group')}</label>
           ${this._renderColorRow('light_on', 'gs.light_on')}
           ${this._renderColorRow('light_off', 'gs.light_off')}
+          ${this._renderColorRow('light_none', 'gs.light_none')}
           <label class="dispsection">${this._t('gs.temp_group')}</label>
           ${this._renderColorRow('temp_cold', 'gs.temp_cold')}
           ${this._renderColorRow('temp_ok', 'gs.temp_ok')}

src/i18n/en.json

@@ -238,5 +238,6 @@
   "gs.lqi_high": "Strong signal",
   "gs.reset": "Reset to defaults",
   "gs.saved": "General settings saved",
-  "space.show_lqi": "Show zigbee signal (LQI) next to devices"
+  "space.show_lqi": "Show zigbee signal (LQI) next to devices",
+  "gs.light_none": "No light sources"
 }

src/i18n/ru.json

@@ -238,5 +238,6 @@
   "gs.lqi_high": "Сильный сигнал",
   "gs.reset": "Сбросить к умолчаниям",
   "gs.saved": "Общие настройки сохранены",
-  "space.show_lqi": "Показывать зигби-сигнал (LQI) у устройств"
+  "space.show_lqi": "Показывать зигби-сигнал (LQI) у устройств",
+  "gs.light_none": "Нет источников света"
 }

src/logic.ts

@@ -531,6 +531,8 @@ export interface FillColorEntry {
 export interface FillColors {
   light_on: FillColorEntry;
   light_off: FillColorEntry;
+  /** Rooms with no light sources at all; alpha 0 (default) = no fill, as before. */
+  light_none: FillColorEntry;
   temp_cold: FillColorEntry;
   temp_ok: FillColorEntry;
   temp_hot: FillColorEntry;
@@ -541,6 +543,7 @@ export interface FillColors {
 export const DEFAULT_FILL_COLORS: FillColors = {
   light_on: { c: '#ffd45c', a: 0.18 },
   light_off: { c: '#9aa0a6', a: 0.14 },
+  light_none: { c: '#6b7480', a: 0 },
   temp_cold: { c: '#4fc3f7', a: 0.18 },
   temp_ok: { c: '#66d17a', a: 0.18 },
   temp_hot: { c: '#ffd45c', a: 0.18 },
@@ -595,7 +598,12 @@ export function roomFillStyle(
              a: colors.lqi_low.a + (colors.lqi_high.a - colors.lqi_low.a) * Math.min(1, Math.max(0, t)) };
   }
   if (mode === 'light') {
-    if (lights === 'none') return null;
+    if (lights === 'none') {
+      // configurable "no light sources" color; alpha 0 keeps the historical
+      // no-fill behavior (and the unfilled hover), so nothing changes until
+      // the user assigns an opacity
+      return colors.light_none.a > 0 ? colors.light_none : null;
+    }
     return lights === 'on' ? colors.light_on : colors.light_off;
   }
   if (mode === 'temp') {