Porting the tabs onto the shared strip had taken the header from 43px to 34px,
which moved the overlaid collapse toggle from 6.5px below the panel's top edge
to 2px while its right inset stayed at 16px — the corner read lopsided. The
header goes to 40px: still shorter than it was, with the toggle back to 5px.
The toggle also gets its 8px radius back, dropped in that port for no reason
anyone asked for.
Selecting a partly-hidden tab scrolled it flush against the container edge,
which is exactly where the fade gradient sits, so it arrived half-faded and
still looked cut off. Reveal now insets by the fade width and clamps at the
scroll extremes, where no gradient is drawn.
Floating tabs cap at 160px so no single tab dominates the row.
Waleed
8177f9abeb