api/config/lang.json

{
  "supported_languages": {
    "en": "English",
    "ja": "Japanese (日本語)",
    "zh": "Mandarin Chinese (中文)",
    "zh-tw": "Traditional Chinese (繁體中文)",
    "es": "Spanish (Español)",
    "kr": "Korean (한국어)",
    "vi": "Vietnamese (Tiếng Việt)",
    "pt-br": "Brazilian Portuguese (Português Brasileiro)",
    "fr": "Français (French)",
    "ru": "Русский (Russian)"
  },
  "default": "en"
}