Examine source code of Genetic Platformer

{
  "manifest_version": 2,
  "name": "Genetic Platformer",
  "version": "1.0",
  "description": "Make genetic algorithm platformer players complete courses",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "Genetic Platformer",
    "default_popup": "genetic-platformer.html"
  },
  "icons": {
    "48": "res/icon48.png",
    "96": "res/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{768866af-9d8a-4f01-ba9c-e5b3cde73e04}"
    }
  }
}