Examine source code of Carrot

{
  "manifest_version": 3,
  "name": "Carrot",
  "version": "0.6.8",
  "description": "Rating predictor for Codeforces",
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg",
    "128": "icons/icon.svg"
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "*://*.codeforces.com/*"
  ],
  "background": {
    "scripts": [
      "src/background/background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.codeforces.com/*"
      ],
      "js": [
        "src/content/content.js"
      ],
      "css": [
        "src/content/content.css"
      ]
    }
  ],
  "options_ui": {
    "page": "src/options/options.html"
  },
  "action": {
    "default_icon": "icons/icon.svg",
    "default_title": "Carrot",
    "default_popup": "src/popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f0eeb71a-e5d6-48e6-a818-568a6bef1bc0}"
    }
  }
}