Examine source code of Simple Sidebar Notes

{
  "manifest_version": 2,
  "name": "Simple Sidebar Notes",
  "version": "1.0",
  "description": "A lightweight, privacy-first note-taking extension in the Firefox sidebar.",
  "icons": {
    "48": "notes-48.png"
  },
  "permissions": [
    "storage"
  ],
  "sidebar_action": {
    "default_icon": "notes-48.png",
    "default_title": "Simple Sidebar Notes",
    "default_panel": "sidebar.html"
  },
  "content_security_policy": "script-src 'self'; object-src 'none'; base-uri 'none'",
  "browser_specific_settings": {
    "gecko": {
      "id": "simple-sidebar-notes@example.com",
      "data_collection_permissions": {
        "data_types": [],
        "purposes": [],
        "required": [
          "none"
        ],
        "reviewed": true
      }
    }
  }
}