Examine source code of Decoy: Masked Email & Password

{
  "manifest_version": 3,
  "name": "Decoy: Masked Email & Password",
  "description": "a new identity for every account. so yours stays yours.",
  "version": "1.1.26",
  "icons": {
    "16": "/icon/16.png",
    "32": "/icon/32.png",
    "48": "/icon/48.png",
    "96": "/icon/96.png",
    "128": "/icon/128.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "alarms"
  ],
  "host_permissions": [
    "https://decoy-api.vercel.app/*"
  ],
  "action": {
    "default_title": "Decoy",
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "avatars/*.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@decoys.me",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "run_at": "document_idle",
      "js": [
        "content-scripts/content.js"
      ],
      "match_origin_as_fallback": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/passkey.js"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/webauthn.js"
      ],
      "world": "MAIN"
    }
  ]
}