Typeing Practice Anywhere

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Typeing Practice Anywhere",
  "version": "0.1.1",
  "description": "Practice Keyboard Typing with any webpages.",
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_title": "Typing Practice Anywhere",
    "default_icon": {
      "16": "icon/ty+16.png",
      "48": "icon/ty+48.png",
      "128": "icon/ty+128.png"
    }
  },
  "icons": {
    "16": "icon/ty+16.png",
    "48": "icon/ty+48.png",
    "128": "icon/ty+128.png"
  },
  "content_scripts": [
    {
      "js": [
        "contentScript.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "options_page": "option.html",
  "web_accessible_resources": [
    {
      "resources": [
        "contentScript.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "storage"
  ]
}