Examine source code of Post-it Digital Terminal

{
  "manifest_version": 2,
  "name": "Post-it Digital",
  "version": "1.0",
  "description": "Aplicativo de lembretes com sincronização entre dispositivos",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_action": {
    "default_icon": "icons/icon48.png",
    "default_title": "Post-it Digital"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "tabs",
    "downloads"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c0f55584-f733-47f7-9132-50279ab24a33}"
    }
  }
}