Examine source code of Uribbble

{
  "name": "Uribbble",
  "description": "Drop comments just with a click on Dribbble",
  "version": "1.0.1",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "https://dribbble.com/*"
      ],
      "css": [
        "style.css"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/uribbble_16.png",
    "48": "icons/uribbble_48.png",
    "69": "icons/uribbble_64.png",
    "96": "icons/uribbble_96.png",
    "128": "icons/uribbble_128.png"
  }
}