Examine source code of CuteEmotes

{
  "manifest_version": 2,
  "name": "CuteEmotes",
  "version": "1.0",
  "description": "Adds Cute Emotes/Smillies To v3rmillion.net!",
  "icons": {
    "48": "icons/shrug.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://v3rmillion.net/newreply.php?tid=*"
      ],
      "js": [
        "CuteEmotes.js"
      ]
    }
  ]
}