Examine source code of EngineBlock

{
  "manifest_version": 3,
  "name": "EngineBlock",
  "description": " Remove vehicles cards on lacentrale.fr containing vehicles with specified engines and also ads containers",
  "homepage_url": "https://github.com/Hogwai/EngineBlock",
  "version": "1.0.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "engineblock@lw.mozmail.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  },
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.lacentrale.fr/*"
      ],
      "run_at": "document_idle",
      "js": [
        "EngineBlock.user.js"
      ]
    }
  ],
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "action": {
    "default_popup": "popup.html"
  }
}