Examine source code of Scout: Job Capture

{
  "manifest_version": 3,
  "name": "Scout: Job Hunter",
  "version": "1.2.0",
  "description": "Automatically captures job listings into Scout as you browse LinkedIn and Seek.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://scout.protogea.com/api/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "background": {
    "scripts": [
      "config.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.linkedin.com/*",
        "https://*.seek.com.au/*",
        "https://au.seek.com/*"
      ],
      "js": [
        "intercept.js"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "matches": [
        "https://*.linkedin.com/*",
        "https://*.seek.com.au/*",
        "https://au.seek.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://scout.protogea.com/extension*"
      ],
      "js": [
        "connect.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Scout: Job Hunter",
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "scout@protogea.com",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}