Examine source code of Sirius Show Hidden Input

{
  "manifest_version": 2,
  "name": "Sirius Show Hidden Input",
  "version": "1.5",
  "description": "Toggle elemen input yang tersembunyi (display:none atau hidden).",
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_title": "Toggle elemen tersembunyi",
    "default_icon": {
      "16": "icons/hidden16.png",
      "32": "icons/hidden32.png",
      "48": "icons/hidden48.png",
      "128": "icons/hidden128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "icons": {
    "16": "icons/hidden16.png",
    "32": "icons/hidden32.png",
    "48": "icons/hidden48.png",
    "128": "icons/hidden128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0b9e6df6-ebd5-4a12-978f-01b4fa6e4c73}"
    }
  }
}