There's way too many zones again imo.

Sunderland Zone, Sunderland District Zone, Red Zone just stick with one and make it easier for people to understand there's no need for 3 different type of day ticket for once place and if it means splitting the Buzz Zones or whatever they're called this week into more zones and offering a one zone (£3.90), 2 zone (£5.30), all zones ticket (£7.00). It's much easier to understand, similar to the Arriva Triple Tickets in SE Northumberland which everyone understands perfectly fine .