Entity Options

Name	Type	Since	Description
icon	string	v2.0.0	null Add an icon to a calendar. If not set, will use the entity icon set in HA. see note below
startTimeFilter	string	v2.0.0	Only shows events between specific times _NOTE_ must be set with endTimeFilter format: '10:00'
endTimeFilter	string	v2.0.0	Only shows events between specific times _NOTE_ must be set with startTimeFilter format: '17:00'
maxDaysToShow	integer	v5.2.0	7 Maximum number of days to show. Overrides main configuration maxDaysToShow for this calendar
blocklist	string	v7.0.0	null Simple case insensitive regex to ignore events that match title
blocklistLocation	string	v7.0.0	null Simple case insensitive regex to ignore events that match location
allowlist	string	v7.0.0	null Simple case insensitive regex to ignore events that match title
allowlistLocation	string	v7.0.0	null Simple case insensitive regex to only add events that match location
showMultiDay	boolean	v7.0.0	false Split multi-day events across all days
name	string	v7.0.0	null Add a calendar name to be shown with event
eventTitle	string	v7.3.0	Where no event title exists, add this string instead, Will only add to this entity, can also be globally set
color	string		null Default color for this calendar’s event titles

Note

It is not advised to use allowlist & blocklist under the same entity.

Note

Set the calendar entity icon by going to Settings -> Entities search for calendar Click the calendar you wish to change, click the cog in the top right and set a new icon.

This is how I recommend setting up the icons now.