Examine source code of Hero Sheet Layout Fix

{
  "manifest_version": 3,
  "name": "Hero Sheet Layout Fix",
  "version": "1.1",
  "description": "Corrige o bug de largura no hero-sheet.com",
  "content_scripts": [
    {
      "matches": [
        "*://hero-sheet.com/*"
      ],
      "js": [
        "fix.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@fixherosheet.felipet1",
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}