Examine source code of Quick Auto-Refresh

{
  "manifest_version": 3,
  "name": "Quick Auto-Refresh",
  "description": "Provides a quick tab auto-refresh toolbar control.",
  "version": "0.2025.404.1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2e91bcfd-3b52-4263-a222-7257f93e5be0}",
      "strict_min_version": "122.0"
    }
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "128": "icons/65601753516276578543768-128-native.png"
    },
    "theme_icons": [
      {
        "dark": "icons/65601753516276578543768-128-black.png",
        "light": "icons/65601753516276578543768-128-white.png",
        "size": 128
      },
      {
        "dark": "icons/65601753516276578543768-64-black.png",
        "light": "icons/65601753516276578543768-64-white.png",
        "size": 64
      }
    ]
  },
  "icons": {
    "48": "icons/65601753516276578543768-48.png",
    "96": "icons/65601753516276578543768-96.png"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options/index.html"
  },
  "permissions": [
    "alarms",
    "contextMenus",
    "storage",
    "tabs"
  ]
}