Examine source code of CarOffer Trade Grade

{
  "description": "Seamlessly create and manage trade requests in CarOffer.",
  "version": "2021.9.3",
  "short_name": "CarOffer Trade Grade",
  "name": "CarOffer Trade Grade",
  "manifest_version": 2,
  "homepage_url": "https://caroffer.pearlsolutions.com",
  "icons": {
    "16": "caroffer-16x16.png",
    "32": "caroffer-32x32.png",
    "48": "caroffer-48x48.png",
    "128": "caroffer-128x128.png"
  },
  "browser_action": {
    "default_title": "CarOffer Trade Grade"
  },
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*.vauto.com/*",
        "https://*.vauto.com/*",
        "https://*.adplotmanagement.com/*",
        "http://*.adplotmanagement.com/*",
        "https://inventory.dealersocket.com/*",
        "http://inventory.dealersocket.com/*",
        "http://max.firstlook.biz/*",
        "https://max.firstlook.biz/*",
        "https://*.dealercenter.net/*",
        "http://*.dealercenter.net/*"
      ],
      "js": [
        "content.js"
      ],
      "all_frames": true,
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.pearlsolutions.com/*",
        "*://*.caroffer.com/*",
        "*://*.showroomxpress.com/*"
      ],
      "js": [
        "extensionEnabled.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "content.js"
  ],
  "permissions": [
    "http://*.vauto.com/*",
    "https://*.vauto.com/*",
    "https://*.adplotmanagement.com/*",
    "https://inventory.dealersocket.com/*",
    "http://*.adplotmanagement.com/*",
    "http://inventory.dealersocket.com/*",
    "http://max.firstlook.biz/",
    "https://dmsapp.dealercenter.net/*",
    "activeTab",
    "tabs",
    "webNavigation"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}