Function createScreen

app.js:3074–3086

(name, fnName)

function createScreen(name, fnName) {
  const id = makeId();
  const safeName = name || "Screen " + (screens.length + 1);
  const defaultFn = "draw" + safeName.replace(/\s+/g, "");
  const screen = {
    id,
    name: safeName,
    fnName: fnName || defaultFn,
    elements: [],
  };
  screens.push(screen);
  return screen;
}

function refreshScreenUI() {
  screenSelect.innerHTML = "";