static/json/config.json

{ 
	"use_text_stream": true,
	"display_contacts_user_list": true,
	"display_avatar_in_chat": true,
	"display_copy_text_button_in_chat": true,
	"display_audio_button_answers": true,
	"display_microphone_in_chat": true,
	"microphone_speak_lang": "en-US",
	"google_voice":"Google US English",
  	"google_voice_lang_code":"en-US",
	"filter_badwords": true,
	"chat_history": true,
	"chat_font_size": "17px"
}