Examine source code of OneDrive Text Edit

{
  "manifest_version": 2,
  "name": "OneDrive Text Edit",
  "description": "Opens a text file from OneDrive inside OneDrive Text Editor.",
  "author": "Ny'alotha Slaanesh",
  "version": "1.1",
  "icons": {
    "16": "icon/edit16.png",
    "48": "icon/edit48.png",
    "128": "icon/edit128.png"
  },
  "permissions": [
    "tabs",
    "cookies",
    "https://onedrive.live.com/*"
  ],
  "browser_action": {
    "default_icon": "icon/edit16.png"
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  }
}