Baseliner

manifest.json

{
  "manifest_version": 3,
  "name": "Baseliner",
  "short_name": "Baseliner",
  "description": "Baseliner adds horizontal & vertical lines to help you align your grid to any website.",
  "version": "7.2",
  "author": "J. Pedro Ribeiro",
  "homepage_url": "https://jpedroribeiro.com/",
  "action": {
    "default_popup": "index.html",
    "default_title": "Baseliner",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "scripting"
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}