Trello Color Count

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "1.1.6",
  "name": "Trello Color Count",
  "description": "Count trello label with color for easier communication in a team",
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "pop/popup.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "https://trello.com/*"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "background/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://trello.com/*"
      ],
      "css": [
        "index.css"
      ],
      "js": [
        "lib/jquery-3.1.1.js",
        "content.js"
      ]
    }
  ]
}