Examine source code of AutoSave Notes Panel

{
  "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": "{b3d0f1e9-3a1c-3b0a-9e6f-5c3d02bcf5cd}"
    }
  }
}