Examine source code of Baulko Clock

{
  "manifest_version": 3,
  "action": {
    "default_icon": "dist/images/orange.png",
    "default_popup": "dist/pages/popup.html",
    "default_title": "Baulko Clock",
    "browser_style": true
  },
  "description": "A bell times extension for Baulkham Hills High School.",
  "icons": {
    "64": "dist/images/orange.png"
  },
  "name": "Baulko Clock",
  "permissions": [
    "storage"
  ],
  "version": "2.0.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "baulko@clock"
    }
  }
}