In the following sample, specific dates are highlighted. In desktop mode, highlighted information about the date will be displayed when hovered.
Special Dates sample demonstrates, how to customize specific dates in a calendar by using the renderDayCell event. This event gets triggered on each day cell element creation that allows you to customize or disable the specific dates
in calendar. Here 10, 15 and 20 date's are customized with custom styles and custom classes.
More information on the calendar customization can be found in this documentation section.