Examine source code of Localizer — live tab captions

{
  "manifest_version": 3,
  "name": "Localizer — live tab captions",
  "version": "0.0.3",
  "description": "Live on-page captions from the audio of the tab you are watching, transcribed and translated locally.",
  "browser_specific_settings": {
    "gecko": {
      "id": "localizer@foss.org",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage",
    "webRequest"
  ],
  "optional_host_permissions": [
    "https://huggingface.co/*",
    "https://*.hf.co/*",
    "https://cdn-lfs.huggingface.co/*",
    "https://cdn-lfs-us-1.hf.co/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Localizer — live tab captions",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "capture-worklet.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  }
}