Examine source code of Sweet Home

{
  "manifest_version": 3,
  "name": "Sweet Home",
  "version": "1.0",
  "description": "A simple little extension for your browser that allows you to set a custom HTML page as a home page",
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "SweetHome@ztzzdsy",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "homepage_url": "https://github.com/ztzzdsy/sweethome",
  "icons": {
    "48": "Icons/Icon48.png",
    "96": "Icons/Icon96.png"
  },
  "chrome_url_overrides": {
    "newtab": "Pages/HomePage/HomePage.html"
  },
  "background": {
    "scripts": [
      "Background.js"
    ],
    "service_worker": "Background.js"
  },
  "action": {
    "default_title": "Sweet Home",
    "default_icon": {
      "32": "Icons/Icon32.png"
    }
  }
}