Trello feels good

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Trello feels good",
  "version": "0.3.3",
  "author": "Vitaliy Emeliyantsev",
  "description": "Aesthetic Trello theme",
  "homepage_url": "https://github.com/gambala/trello",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "minimum_chrome_version": "21",
  "short_name": "Trello feels good",
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "24": "icon24.png",
      "32": "icon32.png"
    },
    "default_popup": "popup.html",
    "default_title": "Trello feels good"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "vendor/jquery-3.1.1.slim.min.js",
        "trello.js"
      ],
      "matches": [
        "https://trello.com/*"
      ]
    }
  ],
  "permissions": [
    "https://trello.com/*"
  ],
  "web_accessible_resources": [
    "trello.css"
  ]
}