Examine source code of Block Instagram log in

{
  "manifest_version": 2,
  "name": "Instagram remove log in to continue",
  "version": "1.0.0",
  "description": "Removes log in window from instagram when not logged in.",
  "icons": {
    "128": "scroll.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.instagram.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}