Examine source code of Gemstone Lore Challenge

{
  "manifest_version": 2,
  "name": "Gemstone Lore Challenge",
  "version": "1.0",
  "description": "Test your knowledge about precious stones and crystals with quick facts.",
  "icons": {
    "48": "gem_icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Gemstone Lore"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c4f15418-06f6-4d99-a7e4-ebfca00891df}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}