The note list still wore the old faint-uppercase group header beside the
sidebar's bold plain-case one, so the two columns read as two apps. The
group headers are bold, plainly cased and in the reading ink now, at
menu size, and their separator boxes carry the same rounded corner as an
active menu item — the hard rule underneath is gone, the box is the
separation. The disclosure mark stays: unlike a sidebar section, a
time-group has no icon, so it is the only thing that says "this folds".
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
