Function setTheme

app.js:1116–1124

(theme)

}

function setTheme(theme) {
  document.documentElement.setAttribute("data-theme", theme);
  localStorage.setItem("theme", theme);
  if (themeIcon) {
    themeIcon.textContent = theme === "dark" ? "☀️" : "🌙";
  }
  syncEmbeddedToolTheme(theme);
  refreshEmbeddedToolHrefs();
}

function toggleTheme() {
  const currentTheme = getTheme();