Starblast Script!

manifest.json

{
  "name": "Starblast Script!",
  "version": "1.0",
  "manifest_version": 2,
  "background": {
    "service_worker": "background.js"
  },
  "action": {
    "default_popup": "root.html",
    "default_icon": {
      "128": "favicon.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://starblast.io/"
      ],
      "js": [
        "starblast.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "storage",
    "activeTab",
    "scripting"
  ],
  "icons": {
    "128": "favicon.png"
  },
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}