Examine source code of BrickPlayer Game Launcher

{
  "name": "BrickPlayer Game Launcher",
  "version": "1.7",
  "description": "Allows you to launch Brick-Hill games in BrickPlayer",
  "icons": {
    "16": "icon16.png",
    "19": "icon19.png",
    "38": "icon38.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "*://*.brick-hill.com/"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.brick-hill.com/play/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "BrickPlayer Browser Extension"
  },
  "manifest_version": 2
}