Examine source code of KickAlert

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "version": "2.3.5",
  "author": "segelferd",
  "homepage_url": "https://github.com/segelferd/kick-alert",
  "default_locale": "en",
  "icons": {
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "html/popup.html"
  },
  "background": {
    "scripts": [
      "src/storage.js",
      "src/kickapi.js",
      "src/utils.js",
      "src/pusher.js",
      "src/bot_tracker.js",
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "src/content.js",
        "src/chat.js"
      ],
      "matches": [
        "https://kick.com/*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "notifications",
    "declarativeNetRequestWithHostAccess",
    "cookies",
    "tabs",
    "alarms",
    "scripting"
  ],
  "host_permissions": [
    "https://kick.com/*",
    "wss://ws-us2.pusher.com/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "enabled": true,
        "id": "ruleset_1",
        "path": "rules.json"
      }
    ]
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src https://fonts.gstatic.com; img-src 'self' https://kick.com https://*.kick.com data:; object-src 'none';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "kickalert@segelferd",
      "strict_min_version": "113.0"
    }
  }
}