// create "New name:" label at the left site above the GuiTextField
addSubPart(new Label(20, 30, 0x404040, NEW_NAME));
// create text field
txt_backpackName = new Textbox(fontRendererObj, 20, 40, 200, 20);
txt_backpackName.setFocused(true);
txt_backpackName.setMaxStringLength(32);
addSubPart(txt_backpackName);
}