Our powerful JS Calendar component
How to apply a class to selected day in month/week view? Now it's highlighted just the 'today' day.
But you can use the Calendar's
It is passed the old and new date so you can querySelector to find the cell for the old date, remove the class and querySelector to find the cell for the new date and add the class.
Obviously, that won't work for hidden views which are "stranded" displaying another date. You'd probably have to refine that solution to update on
This feature will be in the next patch release: