Examine source code of Class Hour

{
  "name": "Class Hour",
  "version": "1.1.2",
  "description": "Access Class Schedules Faster!",
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "32": "icon.png"
  },
  "manifest_version": 2
}