Examine source code of SHSAT Score Calculator

{
  "manifest_version": 3,
  "name": "SHSAT Score Calculator",
  "version": "1.0",
  "description": "Estimate your SHSAT score instantly.",
  "browser_specific_settings": {
    "gecko": {
      "id": "shsat-score-calculator@addon.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [],
        "description": "This extension does not collect or transmit any user data."
      }
    }
  },
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "permissions": []
}