Examine source code of InstaSys

{
  "description": "Instagram System",
  "manifest_version": 2,
  "name": "InstaSys",
  "version": "1.0",
  "homepage_url": "https://instasys25.com/",
  "icons": {
    "48": "icons/isys.png"
  },
  "permissions": [
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "alarms",
    "contextMenus",
    "storage",
    "tabs",
    "theme",
    "notifications",
    "<all_urls>",
    "https://playmusic23.com/*",
    "https://instagram.com/*",
    "https://*.instagram.com/*"
  ],
  "browser_action": {
    "default_icon": "icons/isys.png",
    "theme_icons": [
      {
        "light": "icons/isys.png",
        "dark": "icons/isys.png",
        "size": 32
      }
    ],
    "default_title": "Insta System",
    "default_popup": "win/auth.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://instagram.com/*",
        "https://*.instagram.com/*",
        "https://playmusic23.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "instasys2024i@gmail.com",
      "strict_min_version": "86.0"
    }
  }
}