Examine source code of Glasses Reminder

{
  "manifest_version": 3,
  "name": "Glasses Reminder",
  "version": "1.0.0",
  "description": "Reminds you to put on your glasses at regular intervals",
  "permissions": [
    "alarms",
    "notifications",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "glasses-reminder@example.com",
      "strict_min_version": "109.0"
    }
  }
}