Examine source code of Smelter

{
  "manifest_version": 2,
  "name": "Smelter",
  "version": "1.1.0",
  "description": "Summarize the current page with separate page and comments summaries where available.",
  "author": "Jeff Jones & ChatGPT",
  "browser_action": {
    "default_title": "Smelter",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/smelter-16.png",
      "32": "icons/smelter-32.png",
      "48": "icons/smelter-48.png"
    }
  },
  "options_ui": {
    "page": "settings.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "<all_urls>",
    "clipboardWrite"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "icons": {
    "16": "icons/smelter-16.png",
    "32": "icons/smelter-32.png",
    "48": "icons/smelter-48.png",
    "64": "icons/smelter-64.png",
    "96": "icons/smelter-96.png",
    "128": "icons/smelter-128.png",
    "256": "icons/smelter-256.png",
    "512": "icons/smelter-512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "smelter@ashforge",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}