Examine source code of Grid

{
  "_comment_manifest": "Standard version for browser extensions",
  "manifest_version": 2,
  "name": "Grid",
  "version": "1.0.0",
  "description": "Draw a customizable grid overlay on any webpage",
  "_comment_settings": "Firefox-specific configurations",
  "browser_specific_settings": {
    "gecko": {
      "id": "anabeltellezdu288089@hotmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "description": "This addon collects no user data."
      }
    }
  },
  "_comment_permissions": "Required permissions for the extension",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "_comment_background": "Background script for persistent logic",
  "background": {
    "scripts": [
      "overlay/grid-toggle.js"
    ]
  },
  "_comment_action": "Toolbar icon and popup configuration",
  "browser_action": {
    "default_popup": "overlay/grid-popup.html",
    "default_title": "Grid"
  },
  "_comment_icons": "Extension icons for different sizes",
  "icons": {
    "48": "icons/grid-48.png",
    "96": "icons/grid-96.png"
  }
}