Examine source code of RSF Medals

{
  "manifest_version": 3,
  "version": "1.9",
  "name": "RSF Medals",
  "browser_specific_settings": {
    "gecko": {
      "id": "{ea005da8-4a72-46d4-ad5a-2cf8817daf32}"
    }
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.rallysimfans.hu/rbr/usersstats.php*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "host_permissions": [
    "*://*.rallysimfans.hu/rbr/usersstats.php*"
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "*://*.rallysimfans.hu/*"
      ],
      "resources": [
        "images/wr.png",
        "images/gold.png",
        "images/silver.png",
        "images/bronze.png",
        "images/poop.png",
        "images/checkmark.png",
        "images/wr.svg",
        "images/gold.svg",
        "images/silver.svg",
        "images/bronze.svg",
        "images/poop.svg",
        "images/checkmark.svg"
      ]
    }
  ]
}