Examine source code of Reload in address bar

{
  "manifest_version": 2,
  "name": "Reload in address bar",
  "version": "1.10",
  "author": "Peder Lång Skeidsvoll",
  "homepage_url": "http://truben.no",
  "description": "Moves the reload bar to the address bar",
  "applications": {
    "gecko": {
      "strict_min_version": "72.0"
    }
  },
  "icons": {
    "48": "icons/refresh-48.svg"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "settings/options.html"
  },
  "page_action": {
    "default_icon": "icons/refresh-16-light.svg",
    "default_title": "Reload page",
    "browser_style": true
  }
}