Examine source code of delevit - Visual Review

{
  "manifest_version": 3,
  "name": "Visual Review by delevit.",
  "version": "1.1.4",
  "short_name": "Visual Review & Capture",
  "description": "Visual Review & Capture Tool for use with delevit.com",
  "browser_specific_settings": {
    "gecko": {
      "id": "{59908ca0-034d-4749-84a5-888dcbacc2f9}"
    }
  },
  "icons": {
    "16": "img/icon-16.png",
    "32": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "action": {
    "default_area": "navbar",
    "default_popup": "popup/login.html",
    "default_icon": {
      "16": "img/icon-16.png",
      "32": "img/icon-48.png"
    },
    "default_title": "delevit."
  },
  "background": {
    "scripts": [
      "js/background/background.js",
      "js/contextMenu/contextMenu.js"
    ]
  },
  "sidebar_action": {
    "browser_style": false,
    "default_title": "Visual Review",
    "default_panel": "sidebar/default.html",
    "default_icon": "img/sidebar_icon.png",
    "open_at_install": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/inj/inject.js",
        "js/inj/scroll.js",
        "js/inj/enable.js"
      ]
    }
  ],
  "incognito": "spanning",
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "notifications",
    "activeTab",
    "tabs",
    "storage",
    "menus",
    "scripting",
    "webRequest",
    "webRequestBlocking",
    "history",
    "browsingData"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self' ;"
  }
}