Examine source code of Flibusta Mobile

{
  "manifest_version": 3,
  "name": "Flibusta Mobile",
  "version": "0.8",
  "description": "Подстраивает сайт flibusta.is под экраны смартфонов",
  "author": "seg0ro",
  "homepage_url": "https://mobilarts.ru/",
  "browser_specific_settings": {
    "gecko": {
      "id": "flibusta-mobile@mobilarts.ru",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "minimum_chrome_version": "88",
  "content_scripts": [
    {
      "matches": [
        "https://flibusta.is/*",
        "https://m.flibusta.is/*",
        "http://flibusta.is/*",
        "http://m.flibusta.is/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "48": "icons/icon-48.png"
  }
}