Examine source code of Task Management System

{
  "name" : "Task Management System",
  "author": "Terry Yuen",
  "version" : "0.3.1",
  "description" : "__MSG_extensionDescription__" ,
  "manifest_version" : 2 ,
  "default_locale" : "en" ,
  "icons" : {
    "16" : "icon_16.png",
    "24" : "icon_24.png",
    "38" : "icon_38.png",
    "48" : "icon_48.png",
    "96" : "icon_96.png",
    "128" : "icon_128.png"
  },
  "permissions" : [
    "*://graph.microsoft.com/*" ,
    "*://login.microsoftonline.com/*" ,
    "storage" ,
    "unlimitedStorage" ,
    "contextMenus" 
  ],
  "background" : {
    "scripts" : [
      "background.js" 
    ],
    "persistent" : false 
  },
  "content_scripts" : [
    {
      "matches" : [
        "*://login.microsoftonline.com/common/oauth2/nativeclient*" 
      ],
      "js" : [
        "/content.js" 
      ],
      "run_at" : "document_start" 
    }
  ],
  "browser_action" : {
    "default_icon" : {
      "16" : "icon_16.png",
      "24" : "icon_24.png",
      "38" : "icon_38.png",
      "48" : "icon_48.png",
      "96" : "icon_96.png"
    }
  },
  "commands" : {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      }
    }
  },
  "web_accessible_resources" : [
    "app.html"
  ]
}