Calendar custom background photos and multiple calendars

It would be cool of we could choose one of our own photos for the calendar background picture. I bought another calendar app a while ago that did this. Also I wish there were other calendar assignments for appts added for the day. Just because of the color coding. Work is green. Blue for birthdays some other calendar titles Personal or Family could be yellow and then i could see my month color coded and know i have a birthday this month and a doctor appt, etc. Thank you.