Examine source code of 2FAS Pass Browser Extension

{
  "manifest_version": 3,
  "name": "2FAS Pass Browser Extension",
  "description": "__MSG_appDesc__",
  "version": "1.8.4",
  "short_name": "2FAS Pass",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "author": "Two Factor Authentication Service, Inc.",
  "default_locale": "en",
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png",
      "128": "icons/icon128.png"
    },
    "default_title": "2FAS Pass Browser Extension",
    "default_popup": "popup.html"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "notifications",
    "contextMenus",
    "clipboardWrite",
    "webNavigation",
    "alarms",
    "idle",
    "privacy",
    "scripting",
    "webRequest"
  ],
  "optional_permissions": [
    "clipboardRead"
  ],
  "commands": {
    "2fas_pass_shortcut_autofill": {
      "description": "__MSG_autofillCommand__",
      "suggested_key": {
        "default": "Ctrl+Shift+1",
        "mac": "MacCtrl+Shift+1"
      }
    }
  },
  "incognito": "spanning",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2fa5f682-d4c4-40e3-8ad2-c8404283d4f9}",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "js": [
        "content-scripts/focus.js"
      ]
    },
    {
      "matches": [
        "https://share.2fas.com/*"
      ],
      "all_frames": false,
      "js": [
        "content-scripts/share.js"
      ]
    }
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content-scripts/content.css"
      ],
      "use_dynamic_url": true,
      "matches": [
        "https://*/*",
        "http://*/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  }
}