Examine source code of LinkedIn Recruiter Notes

{
  "manifest_version": 2,
  "name": "LinkedIn Recruiter Notes",
  "version": "1.0.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "linkedin-recruiter-notes@local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "description": "Add notes, stages, and impressions to LinkedIn profiles. All data stored locally.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.linkedin.com/in/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "panel.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon48.png"
    },
    "default_title": "LinkedIn Recruiter Notes"
  }
}