diff --git a/docs/configs/services.md b/docs/configs/services.md
index 0a867dd7a..29c135626 100644
--- a/docs/configs/services.md
+++ b/docs/configs/services.md
@@ -120,7 +120,7 @@ Each widget can optionally provide a list of which fields should be visible via
 
 ### Block Highlighting
 
-Widgets can tint their metric blocks automatically based on rules defined alongside the service. Attach a `highlight` section to the widget configuration and map each block (use the translation key from the widget, or the explicit `field` prop if it is present) to one or more numeric or string rules. The first matching rule wins and its level controls the colours.
+Widgets can tint their metric blocks automatically based on rules defined alongside the service. Attach a `highlight` section to the widget configuration and map each block to one or more numeric or string rules using the field key (for example, `queued`, `lan_users`).
 
 ```yaml
 - Sonarr:
@@ -131,7 +131,7 @@ Widgets can tint their metric blocks automatically based on rules defined alongs
       url: http://sonarr.host.or.ip
       key: ${SONARR_API_KEY}
       highlight:
-        sonarr.queued:
+        queued:
           numeric:
             - level: danger
               when: gte
@@ -142,7 +142,7 @@ Widgets can tint their metric blocks automatically based on rules defined alongs
             - level: good
               when: eq
               value: 0
-        sonarr.status:
+        status:
           string:
             - level: danger
               when: regex
diff --git a/src/components/services/widget/container.jsx b/src/components/services/widget/container.jsx
index 6be5cdb7d..1496c2b3a 100644
--- a/src/components/services/widget/container.jsx
+++ b/src/components/services/widget/container.jsx
@@ -14,8 +14,8 @@ export default function Container({ error = false, children, service }) {
   const { settings } = useContext(SettingsContext);
 
   const highlightConfig = useMemo(
-    () => buildHighlightConfig(settings?.blockHighlights, service?.widget?.highlight),
-    [settings?.blockHighlights, service?.widget?.highlight],
+    () => buildHighlightConfig(settings?.blockHighlights, service?.widget?.highlight, service?.widget?.type),
+    [settings?.blockHighlights, service?.widget?.highlight, service?.widget?.type],
   );
 
   if (error) {
diff --git a/src/utils/highlights.js b/src/utils/highlights.js
index adc4ba756..c20ef945c 100644
--- a/src/utils/highlights.js
+++ b/src/utils/highlights.js
@@ -4,7 +4,23 @@ const DEFAULT_LEVEL_CLASSES = {
   danger: "bg-rose-700/45 text-rose-200 dark:bg-rose-950/70 dark:text-rose-400",
 };
 
-export const buildHighlightConfig = (globalConfig, widgetConfig) => {
+const normalizeFieldKeys = (fields, widgetType) => {
+  if (!fields || typeof fields !== "object") return {};
+
+  return Object.entries(fields).reduce((acc, [key, value]) => {
+    if (value === null || value === undefined) return acc;
+    if (typeof key !== "string") return acc;
+    const trimmedKey = key.trim();
+    if (trimmedKey === "") return acc;
+
+    const targetKey = widgetType ? `${widgetType}.${trimmedKey}` : trimmedKey;
+    acc[targetKey] = value;
+
+    return acc;
+  }, {});
+};
+
+export const buildHighlightConfig = (globalConfig, widgetConfig, widgetType) => {
   const levels = {
     ...DEFAULT_LEVEL_CLASSES,
     ...(globalConfig?.levels || {}),
@@ -12,19 +28,14 @@ export const buildHighlightConfig = (globalConfig, widgetConfig) => {
   };
 
   const { levels: _levels, ...fields } = widgetConfig || {};
-
-  Object.keys(fields).forEach((key) => {
-    if (fields[key] === null || fields[key] === undefined) {
-      delete fields[key];
-    }
-  });
+  const normalizedFields = normalizeFieldKeys(fields, widgetType);
 
   const hasLevels = Object.values(levels).some(Boolean);
-  const hasFields = Object.keys(fields).length > 0;
+  const hasFields = Object.keys(normalizedFields).length > 0;
 
   if (!hasLevels && !hasFields) return null;
 
-  return { levels, fields };
+  return { levels, fields: normalizedFields };
 };
 
 const NUMERIC_OPERATORS = {