Examine source code of Sked Media Library

{
  "manifest_version": 2,
  "name": "Sked Media Library",
  "author": "Sked Social",
  "version": "1.0.7",
  "description": "Add content to Sked's Media Library.",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/logo_16.png",
      "32": "images/logo_32.png",
      "48": "images/logo_48.png",
      "128": "images/logo_128.png"
    }
  },
  "icons": {
    "16": "images/logo_16.png",
    "32": "images/logo_32.png",
    "48": "images/logo_48.png",
    "128": "images/logo_128.png"
  },
  "web_accessible_resources": [
    "sharedData.js"
  ],
  "permissions": [
    "*://*.skedsocial.com/*",
    "notifications",
    "activeTab",
    "contextMenus",
    "storage",
    "cookies"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.instagram.com/*",
        "https://instagram.com/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ]
}