Examine source code of ForkFeed Recipe Clipper

{
  "manifest_version": 3,
  "name": "ForkFeed Recipe Clipper",
  "version": "1.1.7",
  "description": "Save recipes from any website to your ForkFeed collection",
  "permissions": [
    "activeTab",
    "identity",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://api.forkfeed.app/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "forkfeed@forkfeed.app",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "service-worker.js"
    ],
    "type": "module"
  },
  "sidebar_action": {
    "default_panel": "src/sidepanel/sidepanel.html",
    "default_title": "ForkFeed Recipe Clipper",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  }
}