Alter display of all day events on local calendar month view

[Anarch42]

Request

When looking at the monthly view of the local calendar, any timed events show up as dots on the date (which looks good) while any all-day events display with the entire title/summary (which ends up spilling over into adjacent days, especially on mobile.
I believe it would look best to keep a similar style to the timed events and make these an elongated dash on the date to differentiate them and still get the appropriate information across at a glance.

Editing to add a couple of photos for reference.