diff --git a/gallery/src/pages/components/ha-spinner.ts b/gallery/src/pages/components/ha-spinner.ts
index d84b13f399..3dc3eaae7b 100644
--- a/gallery/src/pages/components/ha-spinner.ts
+++ b/gallery/src/pages/components/ha-spinner.ts
@@ -1,6 +1,7 @@
 import type { TemplateResult } from "lit";
-import { html, css, LitElement } from "lit";
+import { css, html, LitElement } from "lit";
 import { customElement, property } from "lit/decorators";
+import { applyThemesOnElement } from "../../../../src/common/dom/apply_themes_on_element";
 import "../../../../src/components/ha-bar";
 import "../../../../src/components/ha-card";
 import "../../../../src/components/ha-spinner";
@@ -11,29 +12,66 @@ export class DemoHaSpinner extends LitElement {
   @property({ attribute: false }) hass!: HomeAssistant;
 
   protected render(): TemplateResult {
-    return html`<ha-card header="Basic spinner">
-        <div class="card-content">
-          <ha-spinner></ha-spinner></div
-      ></ha-card>
-      <ha-card header="Different spinner sizes">
-        <div class="card-content">
-          <ha-spinner size="tiny"></ha-spinner>
-          <ha-spinner size="small"></ha-spinner>
-          <ha-spinner size="medium"></ha-spinner>
-          <ha-spinner size="large"></ha-spinner></div
-      ></ha-card>
-      <ha-card header="Spinner with an aria-label">
-        <div class="card-content">
-          <ha-spinner aria-label="Doing something..."></ha-spinner>
-          <ha-spinner .ariaLabel=${"Doing something..."}></ha-spinner></div
-      ></ha-card>`;
+    return html`
+      ${["light", "dark"].map(
+        (mode) => html`
+          <div class=${mode}>
+            <ha-card header="ha-badge ${mode} demo">
+              <div class="card-content">
+                <ha-spinner></ha-spinner>
+                <ha-spinner size="tiny"></ha-spinner>
+                <ha-spinner size="small"></ha-spinner>
+                <ha-spinner size="medium"></ha-spinner>
+                <ha-spinner size="large"></ha-spinner>
+                <ha-spinner aria-label="Doing something..."></ha-spinner>
+                <ha-spinner .ariaLabel=${"Doing something..."}></ha-spinner>
+              </div>
+            </ha-card>
+          </div>
+        `
+      )}
+    `;
+  }
+
+  firstUpdated(changedProps) {
+    super.firstUpdated(changedProps);
+    applyThemesOnElement(
+      this.shadowRoot!.querySelector(".dark"),
+      {
+        default_theme: "default",
+        default_dark_theme: "default",
+        themes: {},
+        darkMode: true,
+        theme: "default",
+      },
+      undefined,
+      undefined,
+      true
+    );
   }
 
   static styles = css`
+    :host {
+      display: flex;
+      justify-content: center;
+    }
+    .dark,
+    .light {
+      display: block;
+      background-color: var(--primary-background-color);
+      padding: 0 50px;
+      margin: 16px;
+      border-radius: 8px;
+    }
     ha-card {
-      max-width: 600px;
       margin: 24px auto;
     }
+    .card-content {
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      gap: 24px;
+    }
   `;
 }