Examine source code of Time-Table Schedule

{
  "manifest_version": 2,
  "name": "Time-Table Schedule",
  "version": "1.0",
  "description": "A time table or schedule is essential for organizing tasks, events, or classes",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/table-logo.png"
    }
  },
  "icons": {
    "128": "images/table-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2aed8364-50b9-4e03-a649-347028403232}"
    }
  }
}