Make the month name easier to notice in the cell of the 1st day of the month
Please rip this header out of the heading area (and eliminate the heading area as a result, #934) and put this into the cells in month/multiweek/grid view:
This is mostly required for #1 (closed) and #603 to work visually seamlessly without confusion (as the month boundaries would not always be on the 1st row of the grid at the top), but even before those are implemented, it is generally helpful to have; it's easier to spot transition points between months (and years).
Maybe in week view too? Could be nice for consistency, but maybe not strictly needed, at least not as much as in month view.
From what I could find as other examples, some other apps like Fantastical do this, as you can see here (note that in their case, at least in English, they put the month names and dates numbers aligned to the right, and the weather icons aligned to the left; also, they don't have a special header-like appearance for the month name text in the cell, so theirs is somewhat harder to spot):