How to set color for ics event?

Question

From my application, I want to send an email with the ICS application to my clients. I successfully sent mail with a .ics file. Now my customers want to display the .ics event with some color. Is there a way to add a color attribute to a .ics file. Please refer to my .ics file I sent

BEGIN:VCALENDAR
PRODID:-//Events Calendar//iCal4j 1.0//EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20131125T062336Z
DTSTART:20131125T143000
DTEND:20131125T150000
SUMMARY:Pro-Lakshman Pro-Single Lesson 30 mins
TZID:Asia/Kolkata
UID:20131125T062337Z-uidGen@Lakshmanan
ORGANIZER;ROLE=REQ-PARTICIPANT;CN=Lakshman:mailto:[e-mail]
ATTENDEE;ROLE=REQ-PARTICIPANT;CN=Karthik:mailto:[e-mail]
END:VEVENT
END:VCALENDAR

Answer 1

No. iCalendar format does not contain any colors or styles.

Answer 2

. Outlook, . Outlook , " " " ".

, ICS, :

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, MS Outlook.