Examine source code of Web Quote

{
  "manifest_version": 3,
  "name": "Web to TOML",
  "version": "2608.1",
  "description": "Extracts page web page metadata along with the selcted quote, forms a command to match my document system, and copies that command to clipboard via shortcut or button.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{4c41ccae-bf60-4509-8de4-05eb1db389c5}",
      "strict_min_version": "112.0"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "clipboardWrite",
    "notifications"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "48": "icons/icon-48.png"
    },
    "default_title": "Web Quote"
  },
  "commands": {
    "extract-and-copy": {
      "suggested_key": {
        "default": "Ctrl+Shift+U",
        "mac": "MacCtrl+Shift+U"
      },
      "description": "Extract highlighted text and web page metadata."
    }
  }
}