Examine source code of BBEmotes

{
  "manifest_version": 2,
  "name": "BBEmotes",
  "version": "1.0",
  "description": "Adds Twitch emotes ( BetterTTV ) to Blackboard Collab",
  "icons": {
    "48": "icons/icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.bbcollab.com/*"
      ],
      "js": [
        "jquery.js",
        "twitch.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "emotes/*"
  ]
}