Examine source code of inscarry

{
  "description": "【Inscarry】专为Instagram设计，免费一键下载高清图片、视频、Stories 与高光。支持私密账号、支持批量高速下载，轻松管理你的创作素材。",
  "version": "8.0.0",
  "manifest_version": 2,
  "name": "Inscarry - 适用于Instagram的下载器",
  "icons": {
    "128": "icon-128.png"
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.instagram.com/*",
        "*://*.inscarry.com/*",
        "*://inscarry.com/*"
      ],
      "js": [
        "contentScript.bundle.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "icon-128.png",
    "drawer.html",
    "injected.js",
    "assets/img/float-logo.png"
  ],
  "permissions": [
    "tabs",
    "cookies",
    "contextMenus",
    "storage",
    "downloads",
    "*://*/*"
  ],
  "content_security_policy": "default-src 'self'; media-src *; script-src 'self' https://www.google-analytics.com https://studio.inscarry.com; connect-src *; style-src 'self' 'unsafe-inline'; font-src *; img-src * data:;",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8f3c8e81-76d3-4070-88d1-f70d25c81836}"
    }
  }
}