Drag the compact grid down and the day pane gives way to the month drawn
the paged style's way — real bars and pills, not dots; drag up to bring the
pane back. Split could show you which days were busy, or one day in full,
but never the month's events at once without a trip to Settings.
The month swipe grows a second axis to do it, so the two are locked to one
decision per gesture: independent horizontal and vertical detectors would
each see their own component of a diagonal drag and both fire. Paging keeps
ties, so an ambiguous drag still reads as it did.
A tap in the expanded grid picks the day and drops back, which makes it a
chooser you dip into rather than a mode you can get stranded in — so the
grid needs the selection outline too, which MonthGrid now takes optionally.
Expansion is state, not a preference: persisted, someone would expand it
once and later find their Split style changed with nothing to explain why.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>