CraftyLevel

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_icon": "icons/19.png",
    "default_title": "CraftyLevel"
  },
  "content_scripts": [
    {
      "js": [
        "inject.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "Chrome extension that displays the Flesch-Kincaid grade level of any web page",
  "homepage_url": "http://www.crafty184.com",
  "icons": {
    "16": "icons/19.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "manifest_version": 3,
  "name": "CraftyLevel",
  "version": "2.4"
}