Positionable!

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Positionable!",
  "version": "2.1.2",
  "short_name": "Positionable",
  "description": "An extension for visually manipulating elements in the browser.",
  "offline_enabled": true,
  "icons": {
    "16": "images/app/16.png",
    "32": "images/app/32.png",
    "48": "images/app/48.png",
    "128": "images/app/128.png"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "background": {
    "service_worker": "worker.js"
  },
  "action": {
    "default_icon": "images/app/16.png",
    "default_title": "Positionable!"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "*.html",
        "*.css",
        "images/*"
      ],
      "matches": [
        "<all_urls>"
      ],
      "extension_ids": []
    }
  ]
}