Examine source code of Color Game

{
  "manifest_version": 2,
  "name": "Color Game",
  "version": "1.1resigned1",
  "description": "A color guessing game.",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Color Game",
    "default_popup": "colorGame.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7acff487-012f-4ebf-bc55-4502df39e562}"
    }
  }
}