Examine source code of Widevine L3 Decrypter

{
  "manifest_version": 2,
  "name": "Widevine L3 Decrypter",
  "version": "241029.6",
  "version_name": "a1297aa",
  "icons": {
    "128": "icon.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "activeTab",
    "storage",
    "tabs",
    "contextMenus",
    "fetch"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "all_frames": true
    }
  ],
  "browser_action": {
    "default_title": "Widevine Decrypter"
  },
  "web_accessible_resources": [
    "inject.js",
    "manifestauto.js"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{1382d9a7-5b85-4180-ab3d-5adf3e1d49f5}"
    }
  }
}