Function addPresetOption

src/dat/gui/GUI.js:1185–1193

(gui, name, setSelected)

}

function addPresetOption(gui, name, setSelected) {
  const opt = document.createElement('option');
  opt.innerHTML = name;
  opt.value = name;
  gui.__preset_select.appendChild(opt);
  if (setSelected) {
    gui.__preset_select.selectedIndex = gui.__preset_select.length - 1;
  }
}

function showHideExplain(gui, explain) {
  explain.style.display = gui.useLocalStorage ? 'block' : 'none';