diff --git a/webui/src/lib/local-preferences.ts b/webui/src/lib/local-preferences.ts
index 67f42a2e2..5405b1c0a 100644
--- a/webui/src/lib/local-preferences.ts
+++ b/webui/src/lib/local-preferences.ts
@@ -18,7 +18,7 @@ export const DEFAULT_LOCAL_PREFS: LocalPreferences = {
   density: "comfortable",
   activityMode: "auto",
   codeWrap: true,
-  brandLogos: false,
+  brandLogos: true,
   browserNotifications: false,
   fileEditDisplayMode: "summary",
 };
@@ -36,7 +36,7 @@ export function readLocalPreferences(): LocalPreferences {
       density: parsed.density === "compact" ? "compact" : "comfortable",
       activityMode: parsed.activityMode === "expanded" ? "expanded" : "auto",
       codeWrap: parsed.codeWrap !== false,
-      brandLogos: parsed.brandLogos === true,
+      brandLogos: parsed.brandLogos !== false,
       browserNotifications: parsed.browserNotifications === true,
       fileEditDisplayMode: normalizeFileEditDisplayMode(parsed.fileEditDisplayMode),
     };
diff --git a/webui/src/tests/local-preferences.test.ts b/webui/src/tests/local-preferences.test.ts
index 5e207f194..6e17e672c 100644
--- a/webui/src/tests/local-preferences.test.ts
+++ b/webui/src/tests/local-preferences.test.ts
@@ -2,6 +2,7 @@ import { beforeEach, describe, expect, it } from "vitest";
 
 import {
   DEFAULT_LOCAL_PREFS,
+  LOCAL_PREFS_STORAGE_KEY,
   readLocalPreferences,
   writeLocalPreferences,
 } from "@/lib/local-preferences";
@@ -9,6 +10,17 @@ import {
 describe("local preferences", () => {
   beforeEach(() => localStorage.clear());
 
+  it("shows third-party brand logos by default while preserving an explicit opt-out", () => {
+    expect(DEFAULT_LOCAL_PREFS.brandLogos).toBe(true);
+    expect(readLocalPreferences().brandLogos).toBe(true);
+
+    localStorage.setItem(
+      LOCAL_PREFS_STORAGE_KEY,
+      JSON.stringify({ brandLogos: false }),
+    );
+    expect(readLocalPreferences().brandLogos).toBe(false);
+  });
+
   it("keeps browser notifications opt-in", () => {
     expect(DEFAULT_LOCAL_PREFS.browserNotifications).toBe(false);
     expect(readLocalPreferences().browserNotifications).toBe(false);