diff --git a/assets/Core/BrowserWindow/app-icon-dark-transparent.png b/assets/Core/BrowserWindow/app-icon-dark-transparent.png
new file mode 100644
index 00000000..e5ef0e3c
Binary files /dev/null and b/assets/Core/BrowserWindow/app-icon-dark-transparent.png differ
diff --git a/assets/Core/BrowserWindow/app-icon-dark.png b/assets/Core/BrowserWindow/app-icon-dark.png
new file mode 100644
index 00000000..8c53bbdf
Binary files /dev/null and b/assets/Core/BrowserWindow/app-icon-dark.png differ
diff --git a/assets/Core/BrowserWindow/app-icon-light-transparent.png b/assets/Core/BrowserWindow/app-icon-light-transparent.png
new file mode 100644
index 00000000..d3bb74f5
Binary files /dev/null and b/assets/Core/BrowserWindow/app-icon-light-transparent.png differ
diff --git a/assets/Core/BrowserWindow/app-icon-light.png b/assets/Core/BrowserWindow/app-icon-light.png
new file mode 100644
index 00000000..30537d9f
Binary files /dev/null and b/assets/Core/BrowserWindow/app-icon-light.png differ
diff --git a/src/main/Core/BrowserWindow/BrowserWindowModule.ts b/src/main/Core/BrowserWindow/BrowserWindowModule.ts
index 3f48e3cd..2ffe4c49 100644
--- a/src/main/Core/BrowserWindow/BrowserWindowModule.ts
+++ b/src/main/Core/BrowserWindow/BrowserWindowModule.ts
@@ -6,6 +6,7 @@ import type { SearchResultItemAction } from "@common/Core";
 import type { BrowserWindow, BrowserWindowConstructorOptions } from "electron";
 import { join } from "path";
 import { createBrowserWindow } from "./createBrowserWindow";
+import { getAppIconFilePath } from "./getAppIconFilePath";
 import { getBackgroundMaterial } from "./getBackgroundMaterial";
 import { getVibrancy } from "./getVibrancy";
 import { openAndFocusBrowserWindow } from "./openAndFocusBrowserWindow";
@@ -15,11 +16,22 @@ import { toggleBrowserWindow } from "./toggleBrowserWindow";
 export class BrowserWindowModule {
     public static async bootstrap(dependencyRegistry: DependencyRegistry<Dependencies>) {
         const eventEmitter = dependencyRegistry.get("EventEmitter");
+        const nativeTheme = dependencyRegistry.get("NativeTheme");
 
         const browserWindow = createBrowserWindow(dependencyRegistry);
 
         eventEmitter.emitEvent("browserWindowCreated", { browserWindow });
 
+        nativeTheme.addListener("updated", () =>
+            browserWindow.setIcon(
+                getAppIconFilePath(
+                    dependencyRegistry.get("NativeTheme"),
+                    dependencyRegistry.get("AssetPathResolver"),
+                    dependencyRegistry.get("OperatingSystem"),
+                ),
+            ),
+        );
+
         BrowserWindowModule.registerBrowserWindowEventListeners(browserWindow, dependencyRegistry);
         BrowserWindowModule.registerEvents(browserWindow, dependencyRegistry);
         await BrowserWindowModule.loadFileOrUrl(browserWindow, dependencyRegistry);
diff --git a/src/main/Core/BrowserWindow/createBrowserWindow.ts b/src/main/Core/BrowserWindow/createBrowserWindow.ts
index b7c3ba65..1b0582a5 100644
--- a/src/main/Core/BrowserWindow/createBrowserWindow.ts
+++ b/src/main/Core/BrowserWindow/createBrowserWindow.ts
@@ -3,6 +3,7 @@ import type { DependencyRegistry } from "@Core/DependencyRegistry";
 import type { OperatingSystem } from "@common/Core";
 import { BrowserWindow, type BrowserWindowConstructorOptions } from "electron";
 import { join } from "path";
+import { getAppIconFilePath } from "./getAppIconFilePath";
 import { getBackgroundMaterial } from "./getBackgroundMaterial";
 import { getVibrancy } from "./getVibrancy";
 
@@ -28,6 +29,11 @@ export const createBrowserWindow = (dependencyRegistry: DependencyRegistry<Depen
             spellcheck: false,
         },
         alwaysOnTop,
+        icon: getAppIconFilePath(
+            dependencyRegistry.get("NativeTheme"),
+            dependencyRegistry.get("AssetPathResolver"),
+            dependencyRegistry.get("OperatingSystem"),
+        ),
     };
 
     const extendDefaultBrowserWindowOptions = (browserWindowOptions: BrowserWindowConstructorOptions) => {
diff --git a/src/main/Core/BrowserWindow/getAppIconFilePath.test.ts b/src/main/Core/BrowserWindow/getAppIconFilePath.test.ts
new file mode 100644
index 00000000..4479dac3
--- /dev/null
+++ b/src/main/Core/BrowserWindow/getAppIconFilePath.test.ts
@@ -0,0 +1,60 @@
+import type { AssetPathResolver } from "@Core/AssetPathResolver";
+import type { NativeTheme } from "electron";
+import { describe, expect, it, vi } from "vitest";
+import { getAppIconFilePath } from "./getAppIconFilePath";
+
+describe(getAppIconFilePath, () => {
+    it("it should return the correct app icon file path on Windows' dark theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("windows-dark-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: true };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "Windows")).toBe("windows-dark-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-dark-transparent.png");
+    });
+
+    it("it should return the correct app icon file path on Windows' light theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("windows-light-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: false };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "Windows")).toBe("windows-light-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-light-transparent.png");
+    });
+
+    it("it should return the correct app icon file path on macOS' dark theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("macos-dark-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: true };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "macOS")).toBe("macos-dark-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-dark.png");
+    });
+
+    it("it should return the correct app icon file path on macOS' light theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("macos-light-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: false };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "macOS")).toBe("macos-light-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-light.png");
+    });
+
+    it("it should return the correct app icon file path on Linux' dark theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("linux-dark-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: true };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "macOS")).toBe("linux-dark-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-dark.png");
+    });
+
+    it("it should return the correct app icon file path on Linux' light theme", () => {
+        const getModuleAssetPathMock = vi.fn().mockReturnValue("linux-light-theme-icon.png");
+        const assetPathResolver = <AssetPathResolver>{ getModuleAssetPath: (m, a) => getModuleAssetPathMock(m, a) };
+        const nativeTheme = <NativeTheme>{ shouldUseDarkColors: false };
+
+        expect(getAppIconFilePath(nativeTheme, assetPathResolver, "macOS")).toBe("linux-light-theme-icon.png");
+        expect(getModuleAssetPathMock).toHaveBeenCalledWith("BrowserWindow", "app-icon-light.png");
+    });
+});
diff --git a/src/main/Core/BrowserWindow/getAppIconFilePath.ts b/src/main/Core/BrowserWindow/getAppIconFilePath.ts
new file mode 100644
index 00000000..67e36cf4
--- /dev/null
+++ b/src/main/Core/BrowserWindow/getAppIconFilePath.ts
@@ -0,0 +1,21 @@
+import type { AssetPathResolver } from "@Core/AssetPathResolver";
+import type { OperatingSystem } from "@common/Core";
+import type { NativeTheme } from "electron";
+
+export const getAppIconFilePath = (
+    nativeTheme: NativeTheme,
+    assetPathResolver: AssetPathResolver,
+    operatingSystem: OperatingSystem,
+): string => {
+    const fileNames: Record<OperatingSystem, { dark: string; light: string }> = {
+        Linux: { dark: "app-icon-dark.png", light: "app-icon-light.png" },
+        macOS: { dark: "app-icon-dark.png", light: "app-icon-light.png" },
+        Windows: { dark: "app-icon-dark-transparent.png", light: "app-icon-light-transparent.png" },
+    };
+
+    const filename = nativeTheme.shouldUseDarkColors
+        ? fileNames[operatingSystem].dark
+        : fileNames[operatingSystem].light;
+
+    return assetPathResolver.getModuleAssetPath("BrowserWindow", filename);
+};