Colonist.io Counter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Colonist.io Counter",
  "version": "1.0",
  "description": "Keeps track of cards in the bank",
  "action": {
    "default_icon": {
      "48": "images/icon48.png",
      "64": "images/icon64.png",
      "128": "images/icon128.png"
    },
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://colonist.io/*"
      ],
      "js": [
        "colonist.js",
        "content.js"
      ]
    }
  ]
}