Calendar color always changes to iPad color

[DoctorBrown]

I have recently started enabling my iPad for 2-Way syncing to my Win-EPIM. Before this I was using 1-way from Win to iSO. On the Win-EPIM I have all calendars color set to 'None'. I created an event on the iPad and initiated sync. On the Win-EPIM the Calendar color changed to the color that the iPad is set to. On the iPad, I don't see a way to set the color to 'None'. How do I keep my calendars colors set to 'None'?

Systems:
Windows 10,
EPiM version 11..5.3,

iPad (10th Gen)
iOS EPIM ver (latest update)

[admin]

I'm afraid that wouldn't be possible due to the fact that calendars on iOS cannot be without a color, and during a 2-way sync, all the attributes are synchronized between the sides.

[DoctorBrown]

That is disappointing. Thank you very much for your reply.