The bar now spans the sidebar and the grid. It starts with a menu
button that hides or shows the sidebar (remembered across visits),
then a pill Today button, the arrows and a large period title. On
the right a view menu lists Day, Week, Month and Agenda (and Tasks)
with their shortcut keys, and import and subscribe moved into a
"more actions" menu instead of a button of their own.
The Create button moved to the top of the sidebar. While the sidebar
is hidden or an overlay, a compact create button sits in the bar.