Examine source code of Trufflehog - Secret Scan

{
  "manifest_version": 2,
  "name": "Trufflehog (Verify Edition)",
  "version": "0.1.0",
  "description": "Detect + actively verify leaked credentials in the current page",
  "homepage_url": "https://aydinnyunus.github.io",
  "browser_specific_settings": {
    "gecko": {
      "id": "trufflehog-verify@aydinnyunus",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "background": {
    "scripts": [
      "lib/shim.js",
      "lib/b64.js",
      "lib/detectors.js",
      "lib/fanout.js",
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Trufflehog Verify",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "https://*/*",
    "http://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}