Function lighten

public/js/folderManager.js:1213–1215

(hex, amt = 14)

  return '#' + f(0) + f(8) + f(4);
}
function lighten(hex, amt = 14) {
  const { h, s, l } = hexToHsl(hex); return hslToHex(h, s, Math.min(100, l + amt));
}
function darken(hex, amt = 22) {
  const { h, s, l } = hexToHsl(hex); return hslToHex(h, s, Math.max(0, l - amt));
}