Examine source code of New Tab

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "version": "1.2.24",
  "browser_specific_settings": {
    "gecko": {
      "id": "webdoka-new-tab@webdoka.com",
      "strict_min_version": "120.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "downloads",
    "menus",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "__MSG_action_title__",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_popup": "popup.html"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "commands": {
    "start_clip_selection": {
      "suggested_key": {
        "default": "Alt+S",
        "mac": "Alt+S",
        "windows": "Alt+S"
      },
      "description": "__MSG_clip_command__"
    },
    "save_page_unassigned": {
      "suggested_key": {
        "default": "Alt+Shift+S",
        "mac": "Alt+Shift+S",
        "windows": "Alt+Shift+S"
      },
      "description": "__MSG_save_page_command__"
    }
  }
}