Examine source code of Asana task name extension

{
  "manifest_version": 2,
  "name": "Asana task name extension",
  "description": "Asana task name extension",
  "version": "1.1",
  "permissions": [
    "activeTab",
    "clipboardWrite"
  ],
  "action": {
    "default_popup": "/popup/hello.html",
    "default_icon": {
      "16": "/images/icon.png",
      "48": "/images/icon.png",
      "128": "/images/icon.png"
    }
  },
  "icons": {
    "16": "/images/icon.png",
    "48": "/images/icon.png",
    "128": "/images/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://app.asana.com/*"
      ],
      "js": [
        "/scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{abdb5cc7-2c2e-4af5-996d-9b87b55e123f}"
    }
  }
}