Examine source code of Humantic AI

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Humantic AI",
  "description": "Know anyone’s personality, personalize each message, close every deal.",
  "version": "4.0.0.96",
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApSAof1gCBu5paqfYhBjRqIfggEYtvyGBFPDDgHTby4vJtziT/D0zQ2xwT8it4W5u9syP6GPFCNIBpPDSvFgCTrNohG/T8+Zo/Xxqyee972FaqVAzwT7akjgUlqW2Bj+RkIOYjKbSESDbfDRjLSlRpHPbH8Qn9uxBMZ3aWeU/Znvgsc1hqUxx00oIzalDY1n2t3RdCAMmXsavdzz0bO388Sna2WHW2/lWHQERTzNpb8xWbjURhd13Z4fHuduwDKKQ2P6TebBCnITVakzLTuoVUYNE0lKBVX4dJ0GtLtwVVryNoze+SQIthm5Tp3xL9DUO71bMm2JPVgEW4E+oCxCwYQIDAQAB",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "oauth2": {
    "client_id": "274518978967-jdd8knmuv64mmpm93ltlubc8fpfbvsf6.apps.googleusercontent.com",
    "scopes": [
      "https://www.googleapis.com/auth/contacts.other.readonly",
      "https://www.googleapis.com/auth/calendar.readonly",
      "https://www.googleapis.com/auth/userinfo.email",
      "openid"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "js/firefox_notification.js",
        "js/font-awesome.js",
        "js/jquery.js",
        "js/bootstrap.min.js",
        "js/jquery-ui.min.js",
        "js/intro.js",
        "js/tooltipster.bundle.min.js",
        "js/script_cs.js",
        "js/moment.min.js",
        "js/moment-timezone.min.js",
        "js/underscore.js",
        "js/unslider.js",
        "js/config.js",
        "js/genric.js",
        "js/utils.js",
        "js/autosize.min.js",
        "js/highcharts.js",
        "js/variable-pie.js",
        "js/vimeo.js",
        "js/quill.js",
        "js/select2.full.min.js",
        "js/select2.min.js"
      ],
      "css": [
        "css/bootstrap.min.css",
        "css/jquery-ui.min.css",
        "css/tooltipster.bundle.min.css",
        "css/introjs.css",
        "css/genric.css",
        "css/unslider.css",
        "css/style.css",
        "css/tooltipster-sideTip-borderless.min.css",
        "css/quill.css",
        "css/all.css",
        "css/brands.css",
        "css/fontawesome.css",
        "css/regular.css",
        "css/solid.css",
        "css/svg-with-js.css",
        "css/v4-font-face.css",
        "css/v4-shims.css",
        "css/v5-font-face.css",
        "css/select2.css"
      ],
      "matches": [
        "*://*.linkedin.com/*",
        "*://calendar.google.com/*",
        "*://outlook.live.com/*",
        "*://mail.google.com/*",
        "*://web.outreach.io/*",
        "*://*.freshsales.io/*",
        "*://*.salesloft.com/*",
        "*://*.hubspot.com/*",
        "*://*.force.com/*",
        "*://*.pipedrive.com/*",
        "*://*.outplayhq.com/*",
        "*://*.dynamics.com/*",
        "*://*.zoominfo.com/*",
        "*://groove.clari.com/*",
        "*://*.salesforce.com/*",
        "*://app.humantic.ai/*"
      ]
    }
  ],
  "action": {
    "default_icon": "icon48.png",
    "default_title": "Humantic AI",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "/js/moment.min.js",
      "/js/moment-timezone.min.js",
      "/js/config.js",
      "/js/eventPage.js",
      "/js/utils.js",
      "/js/email_resolution.js"
    ],
    "service_worker": "js/background.js"
  },
  "externally_connectable": {
    "matches": [
      "https://app.humantic.ai/*"
    ]
  },
  "permissions": [
    "activeTab",
    "tabs",
    "identity",
    "storage",
    "unlimitedStorage",
    "cookies",
    "scripting"
  ],
  "optional_permissions": [
    "scripting"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; img-src * 'self' data: https:"
  },
  "host_permissions": [
    "https://www.linkedin.com/*",
    "https://api.humantic.ai/*"
  ],
  "optional_host_permissions": [
    "*://*/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "img/*",
        "images/*",
        "images/*/*",
        "js/*",
        "css/*",
        "css/*/*",
        "webfonts/*"
      ],
      "matches": [
        "https://*/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@humantic.ai",
      "strict_min_version": "58.0"
    }
  }
}