Examine source code of Web Clipper to HackMD

{
  "manifest_version": 3,
  "name": "Web Clipper to HackMD",
  "description": "Extract web content and save it directly to HackMD with automatic article extraction",
  "version": "1.0.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "web-clipper@hackmd.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://api.hackmd.io/*"
  ],
  "background": {
    "scripts": [
      "src/background/service-worker.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/readability.bundle.js",
        "src/content/modules/MarkdownConverter.js",
        "src/content/modules/UIStateManager.js",
        "src/content/modules/TeamManager.js",
        "src/content/modules/DragHandler.js",
        "src/content/modules/HackMDSaver.js",
        "src/content/content-script.js",
        "src/content/FloatingPopup.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Web Clipper to HackMD",
    "default_icon": {
      "16": "assets/icons/icon-16.png",
      "32": "assets/icons/icon-32.png",
      "48": "assets/icons/icon-48.png",
      "128": "assets/icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "assets/icons/icon-16.png",
    "32": "assets/icons/icon-32.png",
    "48": "assets/icons/icon-48.png",
    "128": "assets/icons/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/images/*",
        "src/icons/*",
        "src/content/floating-popup.html",
        "src/content/floating-popup.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}