Examine source code of iNote

{
  "manifest_version": 3,
  "name": "iNote",
  "version": "1.0.3.3",
  "description": "iNote is a minimalist, free and anonymous note taking app. Record any thoughts, note , tel , email or todo list. The notes are saved in storage. As you can see, everything is simple and easy to use in iNote.",
  "permissions": [
    "storage"
  ],
  "action": {
    "default_icon": {
      "32": "icons/iNote-32.png",
      "48": "icons/iNote-48.png",
      "128": "icons/iNote-128.png"
    },
    "default_title": "iNote",
    "default_popup": "popup/inote.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "inote-id@sohu.com"
    }
  }
}