Examine source code of Flowace

{
  "manifest_version": 2,
  "name": "Flowace",
  "version": "1.0.3",
  "description": "Automate Time & Work Anywhere",
  "permissions": [
    "storage",
    "tabs",
    "nativeMessaging"
  ],
  "browser_action": {
    "default_title": "flowace",
    "default_popup": "src/extension.html",
    "default_icon": {
      "48": "images/x48.png",
      "96": "images/x96.png",
      "192": "images/x192.png",
      "384": "images/x384.png"
    }
  },
  "icons": {
    "48": "images/x48.png",
    "96": "images/x96.png",
    "192": "images/x192.png",
    "384": "images/x384.png"
  },
  "background": {
    "scripts": [
      "src/eventHandler.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{233f5396-506e-4db7-a2c8-0fb7d708c7ec}"
    }
  }
}