fx-file-server/filebrowser-proxy/fb-theme-hook.js

(function () {
  var FIXED = 'frappe';
  var VER = '20260306w';

  function apply() {
    var html = document.documentElement;
    var body = document.body;

    html.setAttribute('data-fb-skin', FIXED);
    if (body) body.setAttribute('data-fb-skin', FIXED);

    html.style.setProperty('--fb-bg-url', "url('/fb-wallpaper/" + FIXED + ".webp?v=" + VER + "')");

    try {
      localStorage.setItem('fb.skin', FIXED);
      localStorage.removeItem('fb.skin.min');
    } catch (e) {}

    var picker = document.getElementById('fb-theme-picker');
    if (picker && picker.parentNode) picker.parentNode.removeChild(picker);

    var meta = document.querySelector('meta[name="theme-color"]');
    if (meta) meta.setAttribute('content', '#303446');
  }

  apply();
  var ob = new MutationObserver(apply);
  ob.observe(document.documentElement, { childList: true, subtree: true });
})();