Examine source code of HireSweet Extension

{
  "name": "HireSweet Extension",
  "version": "2.5.0",
  "description": "Enhance your Gmail, Linkedin and Google Calendar with HireSweet profiles data. Automate your LinkedIn tasks.",
  "manifest_version": 2,
  "permissions": [
    "storage",
    "downloads",
    "webNavigation",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/hiresweet-32x32.png"
  },
  "icons": {
    "16": "icons/hiresweet-16x16.png",
    "32": "icons/hiresweet-32x32.png",
    "128": "icons/hiresweet-128x128.png",
    "192": "icons/hiresweet-192x192.png",
    "512": "icons/hiresweet-512x512.png"
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "run_at": "document_idle",
      "matches": [
        "https://app.hiresweet.com/*"
      ],
      "js": [
        "getHiresweetToken.js"
      ]
    },
    {
      "run_at": "document_idle",
      "matches": [
        "https://calendar.google.com/*"
      ],
      "js": [
        "enhanceCalendar.bundle.js"
      ]
    },
    {
      "run_at": "document_idle",
      "matches": [
        "https://www.linkedin.com/*"
      ],
      "js": [
        "enhanceLinkedin.bundle.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "*.png",
    "*.svg",
    "*.eot",
    "*.woff",
    "*.woff2",
    "*.ttf",
    "*.otf",
    "*.css",
    "hiresweet-for-linkedin.html",
    "hiresweet-for-gmail.html",
    "hiresweet-for-calendar.html"
  ]
}