Examine source code of Algoritmika

{
  "manifest_version": 3,
  "name": "Algoritmika AutoTyper",
  "version": "1.0",
  "description": "Автоматическая печать текста в заданиях Algoritmika",
  "browser_specific_settings": {
    "gecko": {
      "id": "hearmail@proton.me",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://learn.algoritmika.su/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "content.js"
      ],
      "matches": [
        "https://learn.algoritmika.su/*"
      ]
    }
  ]
}