Examine source code of To-Do List Notes

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "1.0",
  "description": "__MSG_extensionDescription__",
  "permissions": [
    "storage"
  ],
  "sidebar_action": {
    "default_panel": "sidebar.html",
    "default_icon": {
      "128": "icons/icon-128.png"
    },
    "default_title": "Note-Taking Sidebar"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b3d6f3e1-7a5c-1b2a-2e6f-1c8d82bcf5cd}"
    }
  }
}