Examine source code of Custom TTS Reader

{
  "manifest_version": 2,
  "name": "Custom TTS Reader",
  "author": "BassGaming",
  "description": "TTS implementation for the OpenAI api format. Click 'Read Selected Text' in the context menu after highlighting text.",
  "version": "1.5.2",
  "permissions": [
    "storage",
    "contextMenus",
    "activeTab",
    "tabs",
    "downloads",
    "<all_urls>"
  ],
  "content_security_policy": "default-src 'self'; style-src 'unsafe-inline'; connect-src 'self' http://localhost:* http://127.0.0.1:* http://host.docker.internal:* https: http:; media-src 'self' blob:;",
  "background": {
    "scripts": [
      "shared/config.js",
      "shared/notifications.js",
      "background.js"
    ],
    "persistent": true
  },
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon.png",
    "default_title": "Custom TTS Reader"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cfc0ee5e-1bc1-4e83-95b9-98b530ba7403}",
      "strict_min_version": "79.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  }
}