Add macOS 26 icon for RNDT (#57310)

Summary:
Pull Request resolved: #57310

Add `AppIcon.icon` file (Icon Composer) for macOS 26 Tahoe. Also rename previous `.icns` file for consistency.

`electron/packager` is updated to `^20.0.0` (`.icon` support was added in `18.4.0`).

**Notes**

- This change ensures the Icon Composer source is part of the codebase (following above Electron packager support which came in March).

Changelog:
[General][Changed] - **React Native DevTools**: Add macOS 26/27 app icon

Reviewed By: robhogan

Differential Revision: D97292364

fbshipit-source-id: ba1c34175a95da8c2860142d9db0c4d98d3f6de0

Author: huntie

.github/workflows/test-all.yml

@@ -510,7 +510,7 @@ jobs:
         run: yarn test-generated-typescript
 
   build_debugger_shell:
-    runs-on: ubuntu-latest
+    runs-on: macos-26
     needs: check_code_changes
     if: needs.check_code_changes.outputs.debugger_shell == 'true'
     steps:

…w-typed/npm/electron-packager_v18.x.x.js …w-typed/npm/electron-packager_v20.x.x.jsflow-typed/npm/electron-packager_v18.x.x.js renamed to flow-typed/npm/electron-packager_v20.x.x.js flow-typed/npm/electron-packager_v18.x.x.js renamed to flow-typed/npm/electron-packager_v20.x.x.js

@@ -11,29 +11,25 @@
 declare module '@electron/packager' {
   declare export type AsarOptions = $FlowFixMe;
 
-  declare export type ElectronDownloadRequestOptions = $FlowFixMe;
-
   declare export type TargetDefinition = {
     arch: TargetArch,
     platform: TargetPlatform,
   };
 
-  declare export type FinalizePackageTargetsHookFunction = (
-    targets: TargetDefinition[],
-    callback: HookFunctionErrorCallback,
-  ) => void;
-
-  declare export type HookFunction = (
+  declare export type HookFunctionArgs = {
     buildPath: string,
     electronVersion: string,
     platform: TargetPlatform,
     arch: TargetArch,
-    callback: HookFunctionErrorCallback,
-  ) => void;
+  };
 
-  declare export type IgnoreFunction = (path: string) => boolean;
+  declare export type HookFunction = (args: HookFunctionArgs) => Promise<void>;
+
+  declare export type FinalizePackageTargetsHookFunction = (args: {
+    targets: TargetDefinition[],
+  }) => Promise<void>;
 
-  declare export type HookFunctionErrorCallback = (err?: Error | null) => void;
+  declare export type IgnoreFunction = (path: string) => boolean;
 
   declare export interface MacOSProtocol {
     name: string;
@@ -102,7 +98,6 @@ declare module '@electron/packager' {
     buildVersion?: string;
     darwinDarkModeSupport?: boolean;
     derefSymlinks?: boolean;
-    download?: ElectronDownloadRequestOptions;
     electronVersion?: string;
     electronZipDir?: string;
     executableName?: string;
@@ -118,7 +113,7 @@ declare module '@electron/packager' {
         };
     extraResource?: string | string[];
     helperBundleId?: string;
-    icon?: string;
+    icon?: string | string[];
     ignore?: RegExp | (string | RegExp)[] | IgnoreFunction;
     junk?: boolean;
     name?: string;
@@ -132,7 +127,7 @@ declare module '@electron/packager' {
     protocols?: MacOSProtocol[];
     prune?: boolean;
     quiet?: boolean;
-    tmpdir?: string | false;
+    tmpdir?: string;
     usageDescription?: {
       [property: string]: string,
     };

package.json

@@ -53,7 +53,7 @@
     "@babel/plugin-transform-regenerator": "^7.24.7",
     "@babel/preset-env": "^7.25.3",
     "@babel/preset-flow": "^7.24.7",
-    "@electron/packager": "^18.3.6",
+    "@electron/packager": "^20.0.0",
     "@expo/spawn-async": "^1.7.2",
     "@jest/create-cache-key-function": "^29.7.0",
     "@microsoft/api-extractor": "^7.52.2",

…r-shell/src/electron/resources/icon.icns …hell/src/electron/resources/AppIcon.icnspackages/debugger-shell/src/electron/resources/icon.icns renamed to packages/debugger-shell/src/electron/resources/AppIcon.icns packages/debugger-shell/src/electron/resources/icon.icns renamed to packages/debugger-shell/src/electron/resources/AppIcon.icns

@@ -0,0 +1,41 @@
+{
+  "fill" : {
+    "linear-gradient" : [
+      "display-p3:0.21574,0.21966,0.23974,1.00000",
+      "display-p3:0.13729,0.14116,0.15294,1.00000"
+    ]
+  },
+  "groups" : [
+    {
+      "blur-material" : null,
+      "layers" : [
+        {
+          "glass" : false,
+          "image-name" : "logo_light.svg",
+          "name" : "logo_light",
+          "position" : {
+            "scale" : 1.37,
+            "translation-in-points" : [
+              0,
+              0
+            ]
+          }
+        }
+      ],
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.5
+      },
+      "specular" : true,
+      "translucency" : {
+        "enabled" : false,
+        "value" : 0.5
+      }
+    }
+  ],
+  "supported-platforms" : {
+    "squares" : [
+      "macOS"
+    ]
+  }
+}

packages/debugger-shell/src/electron/resources/AppIcon.icon/Assets/logo_light.svg

@@ -45,6 +45,28 @@ const PACKAGE_ROOT = path.join(
   'packages',
   'debugger-shell',
 );
+const ICON_BASE = path.join(PACKAGE_ROOT, 'src/electron/resources');
+
+const platformConfigs = [
+  {
+    platform: ['darwin'],
+    arch: ['x64', 'arm64'],
+    icon: [
+      path.join(ICON_BASE, 'AppIcon.icns'),
+      path.join(ICON_BASE, 'AppIcon.icon'),
+    ],
+  },
+  {
+    platform: ['win32'],
+    arch: ['x64', 'arm64'],
+    icon: path.join(ICON_BASE, 'icon.ico'),
+  },
+  {
+    platform: ['linux'],
+    arch: ['x64', 'arm64'],
+    icon: path.join(ICON_BASE, 'icon.png'),
+  },
+];
 
 async function main() {
   const pkg = JSON.parse(
@@ -73,31 +95,37 @@ async function main() {
 
   await writeBuildInfo();
 
-  await packager({
-    dir: PACKAGE_ROOT,
-    icon: path.join(PACKAGE_ROOT, 'src/electron/resources/icon'),
-    platform: ['win32', 'darwin', 'linux'],
-    arch: ['x64', 'arm64'],
-    name: APP_NAME,
-    appVersion: pkg.version,
-    appCopyright: COPYRIGHT,
-    appCategoryType: 'public.app-category.developer-tools',
-    asar: true,
-    appBundleId: APP_BUNDLE_IDENTIFIER,
-    out: path.join(PACKAGE_ROOT, 'build'),
-    win32metadata: {
-      CompanyName: COMPANY_NAME,
-      ProductName: APP_NAME,
-      InternalName: APP_NAME,
-      FileDescription: `${APP_NAME}.exe`,
-      OriginalFilename: `${APP_NAME}.exe`,
-    },
-    overwrite: true,
-    ignore: [
-      ...IGNORE_PREFIXES.map(prefix => new RegExp('^' + escapeRegex(prefix))),
-      ...IGNORE_FILES.map(file => new RegExp('^' + escapeRegex(file) + '$')),
-    ],
-  });
+  await Promise.all(
+    platformConfigs.map(platformConfig =>
+      packager({
+        ...platformConfig,
+        dir: PACKAGE_ROOT,
+        name: APP_NAME,
+        appVersion: pkg.version,
+        appCopyright: COPYRIGHT,
+        appCategoryType: 'public.app-category.developer-tools',
+        asar: true,
+        appBundleId: APP_BUNDLE_IDENTIFIER,
+        out: path.join(PACKAGE_ROOT, 'build'),
+        win32metadata: {
+          CompanyName: COMPANY_NAME,
+          ProductName: APP_NAME,
+          InternalName: APP_NAME,
+          FileDescription: `${APP_NAME}.exe`,
+          OriginalFilename: `${APP_NAME}.exe`,
+        },
+        overwrite: true,
+        ignore: [
+          ...IGNORE_PREFIXES.map(
+            prefix => new RegExp('^' + escapeRegex(prefix)),
+          ),
+          ...IGNORE_FILES.map(
+            file => new RegExp('^' + escapeRegex(file) + '$'),
+          ),
+        ],
+      }),
+    ),
+  );
 }
 
 async function writeBuildInfo() {