Examine source code of Word Counter Tracker

{
  "manifest_version": 2,
  "name": "Word Counter Tracker",
  "version": "1.0",
  "description": "Track and display the number of words read on each webpage. Helps users manage their reading time more effectively.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Word Counter Tracker",
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{14d0a973-5716-4199-a014-49c16fefeef0}"
    }
  }
}