Examine source code of TabbyNotes

{
  "manifest_version": 3,
  "name": "TabbyNotes",
  "description": "A local-first, tabbed Markdown notebook for your browser.",
  "version": "5.0.0",
  "short_name": "TabbyNotes",
  "icons": {
    "16": "kitty.png",
    "48": "kitty.png",
    "128": "kitty.png"
  },
  "action": {
    "default_title": "TabbyNotes",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ce3ec063-c416-458e-ab4b-7701f3f439bf}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}