Examine source code of Caelestia Startpage

{
  "manifest_version": 2,
  "name": "Caelestia Startpage",
  "version": "1.0.0",
  "description": "A fluid, morphing startpage for Firefox — themed live by the Caelestia shell.",
  "author": "KayoDev23",
  "homepage_url": "https://github.com/caelestia-dots/shell",
  "browser_specific_settings": {
    "gecko": {
      "id": "start-page@caelestia.org",
      "data_collection_permissions": {
        "required": [
          "locationInfo"
        ]
      },
      "strict_min_version": "142.0"
    }
  },
  "background": {
    "scripts": [
      "src/js/background.js"
    ],
    "persistent": true,
    "type": "module"
  },
  "chrome_url_overrides": {
    "newtab": "src/newtab.html"
  },
  "options_ui": {
    "page": "src/options.html",
    "open_in_tab": true
  },
  "permissions": [
    "nativeMessaging",
    "storage",
    "topSites",
    "bookmarks",
    "sessions",
    "theme"
  ],
  "icons": {
    "48": "icons/logo-48.png",
    "96": "icons/logo-96.png",
    "128": "icons/logo-128.png"
  },
  "web_accessible_resources": [
    "icons/*",
    "src/fonts/*"
  ]
}