Trello Card Numbers Plus [2023 Update]

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Trello Card Numbers Plus [2023 Update]",
  "version": "1.3.3",
  "description": "Adds card numbers on Trello and more! Updated October 2023",
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "128": "icons/icon_128.png"
  },
  "action": {
    "default_title": "Trello Card Numbers Plus",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://trello.com/*"
      ],
      "js": [
        "trelloCardNumberPlus.js"
      ],
      "css": [
        "trelloCardNumberPlus.css"
      ]
    }
  ]
}