Examine source code of Sidebar Timer & Stopwatch

{
  "manifest_version": 3,
  "name": "Sidebar Timer & Stopwatch",
  "version": "1.0",
  "description": "A sidebar extension with 4 timers and a stopwatch.",
  "permissions": [
    "storage",
    "alarms"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_panel": "sidebar.html",
    "default_icon": "icon.svg",
    "default_title": "Timer & Stopwatch"
  },
  "action": {
    "default_title": "Open Sidebar",
    "default_popup": "sidebar.html"
  },
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "author": "Incog Nito",
  "browser_specific_settings": {
    "gecko": {
      "id": "{f5df2323-10d6-41da-97b0-3112812652c8}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}