Examine source code of Follower Analysis Insta

{
  "manifest_version": 3,
  "name": "Follower Analysis Insta",
  "version": "2.0.0",
  "icons": {
    "16": "assets/icons/favicon-16.png",
    "32": "assets/icons/favicon-32.png",
    "48": "assets/icons/favicon-48.png",
    "128": "assets/icons/favicon-128.png"
  },
  "description": "Follower Analysis Insta",
  "short_name": "Follower Analysis Insta",
  "permissions": [
    "activeTab",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' object-src 'self'",
    "sandbox": "script-src 'self' object-src 'self'"
  },
  "author": "sekercancepni",
  "browser_specific_settings": {
    "gecko": {
      "id": "sekercancepnii@gmail.com"
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/favicon-16.png",
      "32": "assets/icons/favicon-32.png",
      "48": "assets/icons/favicon-48.png",
      "128": "assets/icons/favicon-128.png"
    },
    "default_title": "tiny title",
    "browser_style": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "js/background.bundle.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/contentScript.bundle.js"
      ]
    }
  ]
}