Examine source code of Kitchenowl Unofficial

{
  "manifest_version": 3,
  "name": "Recipe Importer for KitchenOwl (unofficial)",
  "version": "0.1.0",
  "description": "Import the recipe on the current page into your self-hosted KitchenOwl instance with one click.",
  "author": "Johannes Tebbert",
  "homepage_url": "https://github.com/JoblessJoe/kitchenowl-extension",
  "browser_specific_settings": {
    "gecko": {
      "id": "kitchenowl-importer@johannestebbert.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "action": {
    "default_title": "Import recipe to KitchenOwl",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "48": "icons/icon.svg",
      "96": "icons/icon.svg"
    }
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  }
}