We have support for calendar color management in CalDavZAP (also in CardDavMATE and
InfCloud). You can check the demo and click the color rectangle (if you click to it while
holding the shift button you can also define a HTML hex color).
We use the property used by Apple clients, but your server must support that property -
otherwise the client cannot store the value on the server (then a default value is
calculated from the URL of the calendar using a hash function).
On 16 Oct 2016, at 16:11, Pander
Please in caldavzap offer a similar mechanism for setting colors for
calendars and event lists via globalNetworkCheckSettings (or in another
way), for example:
Preferably not one color for all calendars. Perhaps it is also possible
to retrieve calendar and event list color from the CalDAV source.