Every surface was one flat shade. The window now reads in layers: a darker
frame (tab, transfer and status bars), a lighter header strip per file panel
(session strip, path bar, column headers), the file list, and popovers above
them all. The active panel's header carries a tint of the accent, and odd file
rows get a faint zebra stripe (per row, so it stays aligned at any interface
scale; the cursor and selection replace it).
Hover and selected states become a translucent overlay: an opaque hover
vanished on a surface of its own lightness (light's header strip). Dark cards
and badges step up so popovers never read darker than the strip they cover.
AMOLED is unchanged: every new layer collapses to black there.
Co-Authored-By: Claude <noreply@anthropic.com>