How can I make Calen Mob pick up the right colors

How can I make Calen Mob pick up the right colors from Google Calendar. In fact, how can I contact the developer that made Calen Mob Pro. I hear it was Blue tag but they either sold it or dropped it because they make no claim for it. Does anyone kknow of a group calendar for IOS that will report the color choices as well as the data? Calenmob Pro just brings in one color for every date and appt. Thanks!