Examine source code of Stellar Riddles

{
  "manifest_version": 2,
  "name": "Stellar Riddles",
  "version": "1.0",
  "description": "Challenge your cosmic knowledge! Guess planets, stars, galaxies, and space phenomena from clever Vietnamese clues.",
  "icons": {
    "48": "stellar_icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Stellar Riddles"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c4a04a00-f296-4077-9ccb-7950336c2254}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}