Examine source code of Better Gatry

{
  "manifest_version": 3,
  "name": "Better Gatry",
  "short_name": "BttG",
  "version": "0.1.3",
  "description": "General improvements for gatry.com",
  "homepage_url": "https://gata.dev",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "action": {
    "default_title": "Hi!",
    "default_icon": {
      "16": "images/icon-16.png",
      "32": "images/icon-32.png",
      "48": "images/icon-48.png",
      "128": "images/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "scripts/worker.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "scripts/fancybox.umd.js",
        "scripts/jquery-3.7.0.min.js",
        "scripts/interface.js",
        "scripts/main.js"
      ],
      "css": [
        "styles/fancybox.css",
        "styles/main.css"
      ],
      "matches": [
        "*://gatry.com/*",
        "*://gatry.com.br/*"
      ],
      "run_at": "document_start"
    },
    {
      "js": [
        "scripts/my-account.js"
      ],
      "matches": [
        "*://gatry.com/usuarios/minha-conta*",
        "*://gatry.com.br/usuarios/minha-conta"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "scripts/gatry-bridge.js"
      ],
      "matches": [
        "*://gatry.com/*",
        "*://gatry.com.br/*"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "images/icon-16.png",
        "images/badge_admin.png",
        "images/badge_aviador.png",
        "images/badge_dev.png",
        "images/badge_verified.png",
        "templates/btn-dark-mode.js",
        "templates/btn-settings.js",
        "templates/menu.js",
        "data/verified-users.js"
      ],
      "matches": [
        "*://gatry.com/*",
        "*://gatry.com.br/*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "better-gatry@gataquadrada.com"
    }
  }
}