Add the option to set a color for the gCal events

[Valentina R]

gCal has the option to set a custom color to each Event. A customer would like the option to set a different color for each staff member.

It would be great if there was a color picker in the edit-user page.

Asked here: https://bookingwp.com/forums/topic/staff-details-on-google-calendar/

[Valentina R]

Another similar request - would like to have different colors for different staff.