Examine source code of Web Page Summarizer

{
  "manifest_version": 3,
  "name": "Web Page Summarizer",
  "version": "1.0.0",
  "description": "Summarize any web page using Gemini AI and save it directly to Joplin.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "activeTab",
    "scripting",
    "tabs",
    "notifications"
  ],
  "host_permissions": [
    "https://generativelanguage.googleapis.com/*",
    "http://localhost/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "web-page-summarizer@localhost",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "summary-preview.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}