Examine source code of Secret Scanner

{
  "manifest_version": 3,
  "name": "Secret Scanner",
  "description": "Scan web pages for API keys or passwords",
  "version": "0.7.0",
  "minimum_chrome_version": "140",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "background": {
    "type": "module",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png",
      "48": "images/icon-48.png",
      "128": "images/icon-128.png"
    },
    "default_area": "navbar"
  },
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "default-src 'self'; connect-src http: https: data: file:; img-src 'self' data:;"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "file://*/*"
      ],
      "js": [
        "content-script.js"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "run_at": "document_idle",
      "world": "ISOLATED"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@secret-scanner",
      "strict_min_version": "140.0"
    },
    "gecko_android": {
      "id": "@secret-scanner",
      "strict_min_version": "140.0"
    }
  }
}