Examine source code of Perfect Home

{
  "manifest_version": 2,
  "name": "Perfect Home",
  "version": "0.14.1",
  "author": "PerfectThings",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "description": "New tab replacement",
  "permissions": [
    "bookmarks",
    "storage"
  ],
  "icons": {
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{13f385ce-56f1-489e-b780-e3e71816f48e}",
      "strict_min_version": "80.0"
    }
  }
}