Current date styles

Besides styles for selectedDate it would be grate to add styles for _**current day**_
When user scrolls it is nice to indicate current date. how can I highlight it ?

The issue does not name files or tests; start by locating the existing selectedDate styling and the calendar rendering entry point. Determine how the current day can expose configurable styles, then verify that a user can highlight today's date while scrolling without changing selectedDate behavior.

Written by the indexing model from the issue text.