Examine source code of NoteTracker

{
  "manifest_version": 2,
  "name": "NoteTracker",
  "version": "1.0",
  "description": "A beautiful and intuitive NoteTracker with a rich text editor, cool features, insert tables, create multiple note tabs, & autosave.",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "icons128.png"
    }
  },
  "icons": {
    "128": "icons128.png"
  },
  "permissions": [
    "storage",
    "clipboardRead",
    "identity"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "notetracker@example.com"
    }
  }
}