Examine source code of Angelite Notes

{
  "manifest_version": 3,
  "name": "Angelite",
  "version": "1.1",
  "description": "A minimalistic note-taking extension",
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "windows"
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-polyfill.js",
        "app.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "angelite@example.com",
      "strict_min_version": "109.0"
    }
  }
}