Examine source code of Vocab Wallet

{
  "manifest_version": 3,
  "name": "Vocab Wallet - Your Online Word Bank",
  "version": "1.2.5.1",
  "description": "Vocab Wallet lets you effortlessly save, organize, and learn new words as you browse the web.",
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://vocabwallet.com/*",
        "http://localhost:4200/*",
        "https://localhost:4200/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "js/injectable.js"
      ],
      "matches": [
        "*://vocabwallet.com/*",
        "http://localhost:4200/*",
        "https://localhost:4200/*"
      ]
    }
  ],
  "action": {
    "default_popup": "dist/vocab-builder/browser/index.html"
  },
  "icons": {
    "256": "vwlogo-firefox.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox@vocabwallet.com",
      "strict_min_version": "109.0"
    }
  }
}