Examine source code of HT Studies

{
  "manifest_version": 2,
  "name": "HT Studies",
  "version": "0.1.10",
  "author": "Pierre Gobin",
  "default_locale": "en",
  "homepage_url": "https://htstudies.alwaysdata.net",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "32": "images/logo-32.png",
    "48": "images/logo-48.png",
    "96": "images/logo-96.png",
    "128": "images/logo-128.png",
    "256": "images/logo-256.png",
    "512": "images/logo-512.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.hattrick.org/*"
      ],
      "js": [
        "browser-polyfill.min.js",
        "handlebars.min.js",
        "ht_studies.js"
      ],
      "css": [
        "ht_studies.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "templates/sidebar.html",
    "templates/main.html",
    "images/icons/download_data.svg"
  ],
  "permissions": [
    "https://htstudies.alwaysdata.net/*"
  ]
}