Register an entitySign and render an icon.

16/umbraco-cms/customizing/back-office-signs.md

@@ -23,6 +23,7 @@ For example, a Document scheduled for future publishing will have a Flag defined
 A Flag can be the determinant for a Sign by declaring the `forEntityFlags` as part of its Manifest.
 
 Example:
+
 ```json
 ...
 forEntityFlags: "Umb.ScheduledForPublish",
@@ -33,7 +34,88 @@ Using this binding lets the server determine which signs are present in the resp
 
 ## Displaying a Sign
 
+To display a Sign in the backoffice, register an `entitySign` extension.
+
+Typically, you’ll bind it to one or more flags returned in the server response using the `forEntityFlags` property. However, you can also provide your own logic to determine when a Sign should appear.
+
+If you're using an icon variant, set `kind` to `icon` and provide both `meta.iconName` and `meta.label`. This ensures the user interface has the necessary visual and accessible information to render the Sign correctly.
+
+### Example: Rendering an Entity Sign from a Server Flag
+
+```typescript
+import type { UmbExtensionManifest } from "@umbraco-cms/backoffice/extension-registry";
+import { UMB_DOCUMENT_ENTITY_TYPE } from "@umbraco-cms/backoffice/document";
+
+export const manifests: UmbExtensionManifest = {
+    type: "entitySign",
+    kind: "icon",
+    alias: "Umb.EntitySign.Document.IsProtected",
+    name: "Is Protected Document Entity Sign",
+    forEntityTypes: [UMB_DOCUMENT_ENTITY_TYPE], // Where it can appear
+    forEntityFlags: ["Umb.IsProtected"], // <---Binding part-When it should appear
+    weight: 1000,
+    meta: {
+        iconName: "icon-lock", // Built-in or custom icon name
+        label: "Protected", // Visible/accessible label
+        iconColorAlias: "red",
+    },
+};
+```
+
+When an entity includes the `Umb.IsProtected` flag, this Sign appears next to it in the UI, indicating that the item is protected.
+
+![Screenshot of Recently Created sign](../reference/images/protected-entity-sign.png)
+
+### Example: Rendering an Entity Sign with Custom Logic
+
+The following Sign appears next to any document created within the past week. This Sign isn’t controlled by server flags.
+
+```typescript
+import type { UmbExtensionManifest } from "@umbraco-cms/backoffice/extension-registry";
+import { UMB_DOCUMENT_ENTITY_TYPE } from "@umbraco-cms/backoffice/document";
+
+export const manifests: UmbExtensionManifest = {
+    type: "entitySign",
+    kind: "icon",
+    alias: "Umb.EntitySign.Document.RecentlyCreated",
+    name: "Recently Created Document Sign",
+    forEntityTypes: [UMB_DOCUMENT_ENTITY_TYPE],
+    element: () => import("./recently-created-sign.element.ts"),
+    meta: {
+        iconName: "icon-umbraco",
+        label: "Recently Created",
+    },
+};
+```
+
+And in `recently-created-sign.element.ts`:
+
+```typescript
+@customElement("umb-recently-created-sign")
+export class UmbRecentlyCreatedSignElement extends UmbLitElement {
+    @state() private _createDate?: string;
+
+    override connectedCallback(): void {
+        super.connectedCallback();
+        this.consumeContext(UMB_TREE_ITEM_CONTEXT, (ctx) => {
+            const item = ctx?.getTreeItem?.() ?? (ctx as any).item;
+            this._createDate = item?.createDate;
+            this.requestUpdate();
+        });
+    }
+
+    protected override render() {
+        if (!this._createDate) return null;
+        const created = new Date(this._createDate);
+        const weekAgo = new Date();
+        weekAgo.setDate(weekAgo.getDate() - 7);
+        return created > weekAgo ? html`<div>New</div>` : null;
+    }
+}
+```
+
+![Screenshot of Recently Created sign](../reference/images/custom-entity-sign.png)
+
 {% hint style="info" %}
-The client extension for backoffice signs will be available in Umbraco 16.4 / 17.0.
+Client extensions for backoffice signs are available in Umbraco version 16.4.
 {% endhint %}
-