The toolbar was one row of buttons separated by identical hairlines, so a
column width and the version's change history read as peers. Split it: a
view zone on its own ground -- layout, the two depth controls, fit widths,
none of which reach the server -- and the forecast zone that re-loads,
opens a window, or writes.
The row depth buttons were a fixed 0 1 2 3. A number means nothing without
already knowing what group_by holds, and a fixed range offers levels a
two-field pivot does not have while hiding the fifth of one that does.
They are now built from the live group_by and named after the level they
reveal, which is what the column axis already did -- so both are drawn by
one DepthButtons component, since both are the same thing: a depth in
ViewConfig.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Paul Trowbridge
cc5de46b9e